WIWU Ultra Clear Tempered Glass Film Protector for Apple Watch Series 3/2/1 42mm This screen protector is made of chemically processed PMMA tempered glass, featuring excellent window display, high sensitivity and fine touch feeling. Secure anti-explosion function makes it not be broken into small pieces of sharp. Chemically processed PMMA tempered glass Arc edge feel smooth, do not flutter hand High definition display and high sensitivity 9H hardness, anti-explosion Compatible with: Apple Watch Series 3 42mm Apple Watch Series 2 42mm Apple Watch Series 1 42mm Package included: 1 x WIWU Ultra Clear Tempered Glass Film Protector 1 x English and Chinese Manual Other items not included