Each comb is designed to slide on the hair quickly and efficiently, for a smooth and quick finish that you and your client will appreciate. Each with a different color and a different cutting length for a full range of options. It is not suitable for electric hair clippers and electric hair clippers with lithium batteries or wireless charging. Suitable for all full-size cutting blades for maximum versatility. Electric Clipper Accessories,Universal Hair Clipper Limit Comb Guide Attachment Size Barber Replacement. Name: Caliper limit comb Applicable people: general Colour: black Material: plastic Size: A: 3mm, 6mm, 9mm, 12mm Package Contents: 4 * Limit comb Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.