This is a brand new surgical scalpel blade #3 Handle/Holder. Featuring a rounded handle to allow for better maneuverability and control. This blade handle is made of aluminium and stainless steel. The attachment features a cross vise that tightens and grips the blade firmly. This type of attachment method prevents the possibility of the blade flying off due to wear and tear or poor fit with standard #3 Handles. Simply slide the blade in, tighten and you have a secure and strongly attached blade, ready for use. The diameter of the blade chamber is 6.75mm, so the maximum blade width it can fit is 6.75mm. Fits #10, 11, 11P, E11, 12, 13, 15, 15A Blades Handle Length is 12cm. Does not come with blade