Material : Metal + Plastick Kegunaan : Sebagai Alat Pembuka/Pemasang Kaca Semua Merk Jam Tangan Size(approx.): case opening diameter 12~35mm Description: 1. Suitable repair tool for domed acrylic or plastic crystal. 2. Good for using as watch case opener. 3. Made of metal and plastic material, durable to use. 4. With the base plate, reduce need for rings, wrenches and pliers, convenient to use. 5. The jaws clamp onto crystal, slightly compresses the edges, allowing the crystal to simply lift away.