ev3 - Spik3r wheels move but the spik3r itself doesn't - Bricks
SPIK3R
Lego Mindstorms EV3 Track3R SPIK3R 31313 Instruction Manual Book Only | eBay
Amazon.com: LEGO MINDSTORMS EV3 31313 Robot Kit with Remote Control for Kids, Educational STEM Toy for Programming and Learning How to Code (601 Pieces) : Toys & Games
Calaméo - 31313 Spik3r 2016
Programmable Lego Mindstorms EV3 is the childhood toy you never had | Digital Trends