Material: shower curtain rings made of premium polished chrome plated stainless steel (304 type), 100% stainless steel, won't rust in humid bathroom conditions and against corrosion < p>Easy to install and use: lightly press to open or close, without tools, can be easily slid over the shower curtain hole and rod Ball sliding system: add 5 balls on the hook - The special design reduces friction and allows effortless sliding on the bars. The curtain hooks can carry shower curtains of different thicknesses without deformation. Versatile: 69 x 39 mm, can be used with most shower curtains or curtains and can also hang other small objects, kitchen, bathroom, curtains, hangers