LEGO Part 2994c01 Wheel 30.4 x 14 VR, with Black Tire 30.4 x 14 VR Balloon - 2994 / 6578 (Light Bluish Gray) | iBricktoys: LEGO shop guide and database
Polar Explorer - LEGO set #6578-1 (Building Sets > Town > Arctic)
LEGO Arctic 6569 (6578 6586) Polar Scout + Polar Explorer - Unboxing and Review 2000 - YouTube
Lego Arctic #6586 & 6578 Polar Scout & Explorer INSTRUCTION MANUAL ONLY!! | eBay
LEGO Set 6578 Arctic Figurine - Etsy
LEGO 6578 Polar Explorer Set Parts Inventory and Instructions - LEGO Reference Guide
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6578 Polar Explorer & 6586 Polar Scout Lego Town Arctic 2000 - Wheeljack's Lab