Laube Mammoth Vacuum Snap-On Style Combs, Set of 8 Designed for vacuum clipping; Reduces scissor time; Reduces hand fatigue and carpal tunnel syndrome E-Z snap on locks on to all 4 sides of the blade, no tools required. E-Z to sterilize Fits all professional clippers with standard snap on style blades! Rigid plastic is flexible but does not become bent ; Leaves smooth even clip with no tracks or lines. Better than metal combs! Great for dogs, cattle, sheep, cats and show animals!