Oster Comb Attachment #4 (1/2") 76926-626 - Universal Comb - Specially designed to fit Oster Clippers and almost any other clipper available. The Oster Universal Comb - allows you to cut hair to a specific uniform length. All comb sizes are designed to fit any Oster Clipper, as well as most other clippers available. And they are easy to use - simply attach comb to the base of the blade, pull up and secure into postition. Then Universal Comb is part of a complete line of quality Oster grooming products