Metal alloy and chrome finish classic safetythis old fashion classic opening mechanism works by turning the knob and the top will open, insert new blade and then firmly close to secure the bladerazor handle size is 4.25"20 Pcs platinum brand supermax double edge razor bladesyou can use any other brands of double edge bladesideal for hair salons, barbershops and household usecomes in a mirrored boxhard to find product.