Thames & Kosmos Tumbling Hedgehog STEM Experiment Kit ecosys_m_3550idn_217494|fr_CA U-bar model includes two flanged

U-bar model includes two flanged washers (TN125) and accommodates 5/16" spindle (not supplied)

Black oxide finish Applications: General purpose machine drilling of larger diameter holes in steels

This convenient pack contains four rolls of 250' bubble roll

Can withstand temperatures ranging from -40 deg to 250 degF

Fitting most 15

Thames & Kosmos Tumbling Hedgehog STEM Experiment Kit ecosys_m_3550idn_217494|fr_CA U-bar model includes two flangedBuild your own adorable robotic pet hedgehog! With the 172 building pieces in this kit, you can assemble a real robot that looks like a cute hedgehog. The robot has a built in sound sensor and is programmed to react to different sounds. After you build it, you can play with it by making different sounds and watching it tumble, roll, spin around, bristle its spines, and scurry around. Clap once, and the hedgehog will roll into a ball and tumble