New belt wheel deceleration car student science experiment DIY Mode toy creative

sinoning

$7.69 
SKU: SNP-8

New belt wheel deceleration car student science experiment DIY toy technology kit creative invention

SKU:SNP-8
Feature:
easy diy toy
Practice hand made ability
rubber tire
 
use for old 6 +
 
Package list:
1diy kit
1 user manual