Sullivan Supply Speed-O-Guide-

A great way to assure that the hair is all clipped to one length. Designed to fit small clippers. Simply clips to the under side of a #10 narrow blade on your small clipper. Does not fit on the wide blades that are commonly used on the small clippers, example: Andis Super Blocking Blade. Six sizes to choose from, ranging from a cutting depth of 1/16 – 1″

Sizes:
00 – 1/16″
0 – 3/16″
0A- 5/16″
1- 7/16″
1A- 9/16″
2- 11/16″
3- 1″