Includes: #0 (1/16"); #1 (1/8"); #2 (1/4"); #3 (3/8"); #4 (1/2");#5 (5/8"); #6 (3/4"); #7 (7/8"); #8 (1"); & #10 (1-1/4"). Specially designed to fit Oster clippers but fits almost any clipper available.