Kai's Mech Jet

Kai's Mech Jet (71707-1) is a set in the Ninjago theme, released in 2020. It has 216 pieces and 2 minifigures.

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Number:71707-1
Released:January 2020
Pieces:216
Box size:26.2 × 19.1 × 4.6 cm
Box weight:360 g
Theme:Ninjago

Box size and weight as measured by Brickset.

In numbers

LEGO planned to retire this set in July 2021.

Product details

Number: 71707-1
Name: Kai's Mech Jet
Theme: Ninjago
Released: January 2020
Launched: January 2020
Retired: September 2021 in the United States
Pieces: 216
Minifigures: 2
RRP: ≈ 17.79 USD (24.99 CAD) (Canada)≈ 22.46 USD (19.99 EUR) (Germany)≈ 23.17 USD (89.99 PLN) (PL)≈ 24.11 USD (17.99 GBP) (United Kingdom)19.99 USD (United States)
Price per piece: ≈ 0.082 USD (0.116 CAD) (Canada)≈ 0.104 USD (0.093 EUR) (Germany)≈ 0.107 USD (0.417 PLN) (PL)≈ 0.112 USD (0.083 GBP) (United Kingdom)0.093 USD (United States)

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

BrickLink market data

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Pricing

Best price ever≈ 278.25 USD (250.00 EUR) Advertising Sealed · gross · idee+spiel · seen 10/29/2026 Not compared yet, no exchange rate: 43 in other currencies

Current best offerNo current offer we can compare.

Price history

There are not enough shop prices in this range to draw a chart yet.

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Price statistics by condition

Nobody has sold this set recently.

Sources Data in Brief: 43 · idee+spiel: 33

Latest price from each shop

Sorted: lowest price first Show highest first

Countries (all)

Show prices for

Germany (DE)

Poland (PL)

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What each source tells us:

Shops: the country they are in, and a delivery within it. None says whether it delivers abroad.
LEGO's own shops: one storefront per country, each delivering within its country.
Hugendubel: in Germany, delivering to Germany and to Austria.
eBay: the country the item is in, and a delivery within the country of the eBay site it is listed on.
BrickLink: averages over sellers worldwide - no seller's country and no delivery.

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idee+spiel Sealed · gross · seen 11/3/2026

≈ 279.48 USD (250.00 EUR)

Go to shop

Data in Brief Sealed · gross · sold 6/1/2023

188.99 PLN

Go to shop

Amazon.com BrickDb shows no Amazon prices. The link opens a search for this set on Amazon's own site.

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Where these prices come from

On eBay

The cheapest eBay listings we saw in the last seven days. They are sellers' asking prices, so they are not in the shop price list or the best offer.

We have not seen a current eBay listing for this set.

Recommended retail price

What LEGO published as the recommended retail price, market by market, in that market's own currency. No market's price is ever derived from another's.

Canada ≈ 17.79 USD (24.99 CAD) unknown tax basis Available 1/2/2020 to 9/3/2021.Recorded by BrickDb since 10/2/2026

Germany ≈ 22.46 USD (19.99 EUR) gross Available 1/3/2020 to 7/3/2021.Recorded by BrickDb since 10/2/2026

PL ≈ 23.17 USD (89.99 PLN) gross No availability dates published.Recorded by BrickDb since 10/21/2026

United Kingdom ≈ 24.11 USD (17.99 GBP) gross Available 1/1/2020 to 7/3/2021.Recorded by BrickDb since 10/2/2026

United States 19.99 USD net Available 1/2/2020 to 9/3/2021.Recorded by BrickDb since 10/2/2026

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Building instructions

All building instructions for this set on LEGO.com

Parts in this set

106 inventory lines

Catalogue image of the part Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib]

Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] 10247· Black

×2

Catalogue image of the part Tile Special 2 x 2 Inverted

Tile Special 2 x 2 Inverted 11203· Black

×2

Catalogue image of the part Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom

Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom 11215· Black

×1

Catalogue image of the part Brick Curved 2 x 1 No Studs [1/2 Bow]

Brick Curved 2 x 1 No Studs [1/2 Bow] 11477· Red

×6

Catalogue image of the part Plate Special 1 x 2 with 5.9mm Centre Side Towball

Plate Special 1 x 2 with 5.9mm Centre Side Towball 14417· Dark Bluish Gray

×2

Catalogue image of the part Plate Special 1 x 2 5.9mm Centre Side Towball Socket

Plate Special 1 x 2 5.9mm Centre Side Towball Socket 14704· Light Bluish Gray

×4

Catalogue image of the part Brick Curved 2 x 2 x 2/3

Brick Curved 2 x 2 x 2/3 15068· White

×2

Catalogue image of the part Plate Special 1 x 1 with Vertical Tooth

Plate Special 1 x 1 with Vertical Tooth 15070· White

×2

Catalogue image of the part Launcher Trigger, Weapon Gun Trigger

Launcher Trigger, Weapon Gun Trigger 15392· Dark Bluish Gray

×2

Catalogue image of the part Launcher, Plate Special 1 x 2 with Mini Blaster

Launcher, Plate Special 1 x 2 with Mini Blaster 15403· Black

×2

Catalogue image of the part Tile Special Round 2 x 2 with Hole

Tile Special Round 2 x 2 with Hole 15535· Black

×1

Catalogue image of the part Tile Special 1 x 1 with Clip with Rounded Edges

Tile Special 1 x 1 with Clip with Rounded Edges 15712· Black

×1

Catalogue image of the part Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle

Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle 18651· Black

×2

Catalogue image of the part Plate Special 1 x 2 with Pin Hole Underneath

Plate Special 1 x 2 with Pin Hole Underneath 18677· Black

×2

Catalogue image of the part Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]

Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] 21459· Orange

×2

Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] 21459· Yellowish Green

×2

2 minifigures

Minifigures in this set

Kai / Digi Kai with Shoulder Armor

/ fig-002823 /

No retail priceNo recent sales

Richie - Black Katana Holder

/ fig-002822 /

No retail priceNo recent sales

Same theme, piece count within 15 %

Similar sets

Kai's Mech Jet

In numbers

Product details

BrickLink market data

Can I build this?

Pricing

Price history

Latest price from each shop

On eBay

Recommended retail price

Building instructions

Parts in this set

Minifigures in this set

Kai / Digi Kai with Shoulder Armor

Richie - Black Katana Holder

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