Ring ball Apparatus double burette clamp function giving you plenty of material

giving you plenty of material for multiple projects without having to make frequent purchases

This feature is crucial in experiments and devices where accuracy matters

Complete in well-polished wooden case

or involved in any application that requires uniform drying procedures

Ring ball Apparatus double burette clamp function giving you plenty of materialRing ball Apparatus A useful apparatus for demonstrating thermal expansion. Includes a brass ball and a brass ring each mounted on a handle. The ball fits easily through the ring at room temperature. When the ball is heated over a flame, it expands and no longer fits in the ring. Escrow is safe for buyers and sellers, we recommend you to choose Escrow,it supports Credit card, Money bookers, Visa, Master card, Western union etc. If you need to use