(4 pieces) screen protector and (2 pieces) case are only compatible with Galaxy Watch 5 44mm & Galaxy Watch 5 4mm smartwatches, not applicable to other models.Galaxy Watch 5 44mm screen protector is made of tempered glass 9H hardness 2.5D curved edge design, product light transmission rate: 98% anti-reflective up to: 98%, HD clear Touch sensitivity, oleophobic layer technology, smooth surface. Galaxy Watch 4 44mm case is made of high quality ultra-thin PC hard rubber material, which does not affect the accuracy of the touch screen and allows easy access to all ports and buttons without affecting the strap insertion or sensors. The case is durable, sweatproof, waterproof, soft, lightweight and durable, which can well protect the smartwatch from being scratched or touched by hard objects and wonderful wearing experience.