1STURDY MATERIAL: Made of excellent alloy steel material, which is rust proof and sturdy. It is a durable tool. Mainly used for watch crown tube removal. 2ADJUSTABLE DESIGN: Suitable for most crowns, making it easy and fast to repair your mechanical watch. Perfect for watchmakers and watch repairers. 3PRACTICAL TOOL: Different sizes of pins fit different sizes of tubes. The tube is removed by inserting the pin into the tube and twisting it. Grasp the groove in the pin and remove the tube with the applied pressure 4PORTABLE DESIGN: Watch crown tube remover is light weight, compact and easy to carry. Equipped with 3 pins replacement head, suitable for most watches. 5REPAIR HELPER: Simple and practical, beautiful appearance is the essential repair tool for professional watch repairers and watchmakers.