Feature:1. Practical tool suitable for opening the watch cover, unfading and durable.2. Special designed for easily opening watch glass and watch front cover.3. Change watch battery easily without going to professional watch shop.4. Small size, light weight design, you can take it with you wherever you go.5. Handy practical tool, special designed for watch lovers and professionals.Specification:Condition: 100% Brand NewItem Type: Watch Glass PumpMaterial: Plastic Usage: Remove watch cover and open watch case How to use: first install the plastic adapter of the air pump, then place the plastic tip gently on the glass, and then push the pump vigorously Package List:1 x Pump 5 x Plastic Adapter 1 x Metal Pry