Universal crystal lift tools for unbreakable crystals of 10 - 45 mm (41/2" - 20"). Removes and inserts immediately, crystals without disassembling the watch. Will not damage the crystal. For any unbreakable crystal without tension ring. Useful for removing immediately a watch glass for: replacing the glass, steam removing & getting at the hands. Both tools are delivered with a standard platform. Manual. Made in Switzerland.