BUILT TO LAST
Designed for Australian conditions
Engineered to withstand the harshest climates and built to last with premium materials, this product is crafted with care for everyday Australian life.
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40,000+ Australian customers · Australian-owned & operated
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Overview
LEGO NINJAGO Arin’s Battle Mech fantasy toy lets kids aged 4+ learn to build and play out stories with a mech action figure and 2 minifigures.
Arin’s Battle Mech (71804) ninja toy lets kids aged 4+ learn to build as they join in with their ninja heroes’ attempt to save their dragon friends. This role-play action toy includes an impressive mech figure to inspire kids to recreate exciting adventures from season 2 of the NINJAGO Dragons Rising TV show.
This LEGO set comes with 2 minifigures: Arin with a katana accessory and a Wolf Mask warrior with a sword accessory. Arin fits in the posable mech figure, which wields a large sword and rotating blade, while the Wolf Mask Warrior can fly in a glider that has posable wings, a disc shooter, and 2 spears. There’s also a brick-built crystal cave with a magic mallet inside and a weapons rack with 2 golden katana sword accessories.
This ninja toy has been designed to provide a fun experience for children aged 4+ who are discovering the joy of building with LEGO bricks. The set comes with a starter brick and a partly constructed base that gets kids building quickly and with confidence.
- Learn-to-build ninja toy for Kids Boys and girls aged 4 years old and up can discover the joy of building and playing out ninja stories with the all-action Arin’s Battle Mech playset
- Posable mech toy: Kids can recreate battles from season 2 of the NINJAGO Dragons Rising TV show with this mech figure featuring a cockpit, posable limbs, rotating blade and large sword accessory
- 2 LEGO NINJAGO minifigures: The Ninja playset includes an Arin minifigure armed with a katana accessory so kids can role-play action against the Wolf Mask Warrior with his sword
- Flyer and crystal cave: Role-play toy set includes a flyer with posable wings, a disc shooter and 2 spear elements, a crystal cave with a magic mallet, and a weapons rack with 2 katana sword elements
- Ninja gift: The LEGO set provides a fun build-and-play experience and is a gift idea for kids aged 4 and up to fuel their imaginations and develop their storytelling skills
- Discover more Ninja toys for kids. Look out for other NINJAGO playsets (sold separately) featuring dragons, mechs and ninja legends
- Introduction to building with LEGO bricks: 4+ LEGO playsets help youngsters learn how to build while allowing the rest of the family to share in the fun
- Measurements: 104-piece LEGO set with a mech toy standing over 4 in. (10 cm) tall
Specifications
Specifications will vary by product. Please refer to the product description above or contact us before ordering if you need a specific measurement.
Shipping & Returns
Shipping
Orders are dispatched from our Sydney warehouse within 1–2 business days of payment. Delivery times from Sydney:
- NSW & ACT: 2–5 business days
- VIC & QLD: 2–7 business days
- SA: 3–8 business days
- TAS: 4–10 business days
- WA: 5–10 business days
Tracking is provided on dispatch. Remote postcodes may incur additional fees.
30-day change-of-mind returns
We offer a 30-day change-of-mind return on select unopened products in original packaging (excluding health/safety items or bulk purchases). Email us within 30 days of delivery to start a return.
A restocking fee of 7–25% applies, plus return postage (unless approved otherwise). Customer-incurred postage costs are non-refundable without prior approval.
Faulty or damaged on arrival
If your product arrives faulty or damaged, contact our support team with your order number, photos/videos of the fault, and the original packaging. Do not return items without a return authorisation.
Warranty
12-month Australian warranty on this product unless noted otherwise. The warranty covers manufacturing defects under normal use.
The warranty does not cover:
- Damage caused by misuse, incorrect installation, or modification.
- Damage during delivery (claim under shipping policy instead).
- Normal wear and tear.
To claim warranty: contact our support team with your order number, photos/videos of the fault, and a brief description. We will assess the claim and offer a replacement, repair, or refund as appropriate.
AUTOMATION
Smart automation, set and forget
Time-saving design with intuitive controls. Set it once and let it work for you, freeing up your time for what matters most.
AUSSIE SUPPORT
Backed by genuine Australian support
Local warranty, fast dispatch from Sydney, and Australian customer service Mon-Fri. We are a real business with real people, just a phone call away.
Complete the set
Frequently bought together
Hand-picked add-ons from the same category — save when you bundle.
Total price
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Why Aussies Shop With Auzzi
A registered Australian business with real local support, transparent pricing, and fair returns.
Australian Business
ABN 79 670 758 782. Registered in Australia.
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Ships fast from our Sydney warehouse.
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30-Day Returns
Change-of-mind returns within 30 days.