• School teaching-- the metal ball can pass through the ring at room temperature, but cannot pass through after being heated,physical enthusiasts tool
• Teaching aid-- the physics experiment material is strong and , ensuring reliable performance,physical teaching aid
• Physics experiment-- the metal ball is a simple aid for demonstrating thermal expansion and contraction, making it easy to understand,experiment material for physical
• Laboratory experimental supplies-- the physics demonstration experiment tool is easy to use, requiring no special skills,laboratory supply
• Laboratory supplies-- the physical experiment tool is easy to operate, making it intuitive and easy to understand,physical experiment tool

• Product Dimensions ‏ : ‎ 10.63 x 1.5 x 0.98 inches; 7.36 ounces
• Date First Available ‏ : ‎ October 12, 2024
• Manufacturer ‏ : ‎ OKUMEYR
• Country of Origin ‏ : ‎ China