.- Overall length 18-3/4"(476 cm) .- Material: Steel .- Holding Capacity: 68 to 140 mm (2-5/8* - 5.5 inch) square crucibles .- Handle: Plastic 4-1/8" Length

These crucible tongs are suitable for use with square crucibles. To use with a square crucible, place your crucible into jaws of the holder, Pull the spring back, place the crucible in your receptacle and let the spring hold it. For crucibles in range from 68 to 140 mm (2-5/8* - 5.5 inch)square.Total length 18-1/2" , with plastic handle 4-3/8". Madre from 3.8 mm steel. Note: Crucible not included