Snap on Pop Off Watch Case Back Opener & Bezel Remover Sharp Reversible Knife Stainless Steel Blade Single Pry Vise Type Watchmaker Repair Tool Free Spare Blade (Single Pry Vise Deisgn) Snap on Pop Off Watch Case Back Opener & Bezel Remover Sharp Reversible Knife Stainless Steel Blade Single Pry Vise Type Comes with a reversible spare blade Size 150 x 90 x 65mm Durable structure, open case back and remove bezel without leaving scratches