Vastar Watch Adjustable Opener Back Case Press Closer Remover Repair Watchmaker Tool and Watch Case Back Opener Repair Remover Holder Tool Watch opener: 100% brand new and high quality which made of steel material with a size of 70MM x 28MM x 11MM and tips adjust from 12MM to 57MM Watch opener: Adjustable tempered pins for easy use on water resistant cases The watch case holder tool with 4 hard adjustable plastic pins will minimize the risk of slipping and scratching of the back of the watch case The watch case holder tool can be set in different positions for different cases with different sizes The perfect professional tool set for watch repairing, note: The appearance of watch back base opener has been updated