High Quality: The bottom surface is made of non-slip material, the material is made of high-quality materials, the top is PU, and there is a groove in the middle, so as not to damage the movement. Material: Synthetic leather. Watch Repair Protector: The case pad is a professional tool for watchmakers and watch repairers, which can repair the working surface of the case and protect and fix the crystal glass. Safe Maintenance: A safe way to avoid scratching the watch when replacing batteries, glasses, or repairing the watch. Offers you more convenience to protect your watch. Applicable to: Suitable for boxing and unboxing movements, loosening screws, and adjusting the regulator. Secure attachment with a sturdy metal ring. Product size: refer to the size picture The size in the picture is manually measured, there is a slight error, please understand Delivery quantity: 1 piece