A quick and easy tool for demonstrating thermal properties of matter. Bar is bi-metallic and has a wooden handle attached. When heated, the bar bends dramatically. Includes activity guide. Additional Info: A quick and easy tool for demonstrating thermal properties of matter. Bar is bi-metallic and has a wooden handle attached. When heated, the bar bends dramatically. Includes activity guide. Package Size(L x W x H): 9.5 X 1 X 1 (IN) Categories: Matter, Thermal Properties HTS Code: 7326.90.8588 UNSPSC: 4.1e+007 Country Of Origin: INDIA