... with plastic handle 3. Specifications: No. 10, 11, 12, 14, 15, 18, 20, 21, 22, 23, 24, 25. 4.Disposable carbon ... .Blade models available:3,10,11,12,12d,13,14,15,15c,16,17,18,19,4,20,21,22,23 ... box 8.Way of sterilization: sterilized by Gamma Radiation. Sterle Scalpel