These cast-alloy guards have rounded edges to prevent injuries on andfrom kicking or fractious animals. Assure consistent fast blocking. FitOster 510 & 610 Clip Master and Sheep Master models, and otherhorse clippers of most brands. High quality combs made by StoneManufacturing Inc., USA. Set of 3 combs, depths 10mm, 13mm and 16mm.Mounting screws are included. Comb dimensions are 80mm wide x 75mm long.