10 Pcs Metal Weight with Hooks and Ring Lever Principle Physical Experimental Teaching Tool 50g

Feature: 1. Used in general secondary schools, technical secondary school when conducting experiments or grouping experiments for students. 2. The structure is simple, easy to operate and clean. 3. Not easy to corrode,can be used for long time. 4. One end is a hook and the other end is an iron ring, which can be continuously hooked. 5. Equipped with a plastic box for protection and portability. Specification: Item Type:Weight Weight:50g Package List: 10 x Weight