The following is the operation of the product 1, insert the used syinge needle to the destorye mouth. 2.Move the handle down to close the destroyer mouth and cut off the needle 3, move the handle up to open the destroyer mouth, now the needle has been destroyed, 4, move the handle to facilitate needle falling into the container The following is more detail information of our products: 10 units/ctn, 48cm*45cm*19cm, G/w:10kg/ctn