Our Rollerball Shower Curtain Rings are constructed of anti-corrosion nickel plated steel. The rolling balls at the top of the rings allow your shower curtain to glide easily on the rod. They are an attractive， functional， practical， and affordable， alternative for hanging your shower curtains.Features and Specifications:Anti-Corrosive Nickel plated steel constructionRolling Ball easy glide ringsEuro StylePinch Closure designColor ~ Polished Silver/ChromeFit 1�� and .75�� RodsRing Dimension ~ 1-5/8�� by 3��Quantity ~ 12 Rings