Package Content: 50pcs white curtain rings, enough for daily use and replacement. The inner diameter of the hanging ring is 35mm,Outer diameter 40mm; Excellent Material: The shower curtain rings are made of plastic, they slide smoothly on the curtain rod without squeaking like metal rings and they will not rust in humidity. Smooth Surface: The rings and hooks are beautifully polished and have a smooth surface that is not easily deformed, does not scratch your fingers or pinch the curtain cord, making them flexible and safe. Easy to Open and Close: The ring can be opened and closed directly. This makes it possible to replace the curtain without removing the rod. Wide range of applications: The curtain sliders and rod rings allow you to easily hang bed curtains and use them for a closet door with casements, shower curtain, window curtain, patio door curtains, etc. Shipping quantity: 50 piece