• 10 strips per pack
• Bimetallic strip attached to wood block (block dimensions: 1.85in X 1.45in X 0.4 in)
• Total length of item: 4.31in
• Strips attached by 2 nails

Bimetallic strips are sturdy strips of two metals attached to solid wood blocks and can be used to study thermal energy converting to mechanical motion (this is caused by the different expansions of two different metals when heated).