SizeInner diameter 3.7cm Length 7.5cm, wire diameter 2.2mm, individual weight 8g, suitable for most standard size round shower curtain rails. New and Shiny: shower curtain ring hooks are made of high quality metal, polished chrome alloy, rust-free, strong and durable, non-toxic and odourless, shining in the light, adding a nice elegance to your bathroom and enjoy a pleasant shower time. [Heavy Duty Closure Hooks]: Double shower curtain rings are strong enough to hold heavy shower curtains and rods in place. The safety catch can be clamped tightly to ensure that the shower roller can easily fit through the shower curtain's eyelets and the hooks will not slip off. [Easy to install]: Simply press the release lock, place the curtain ring in and clip the lock back into place. The shower hooks have 5 small metal magnetic balls that glide effortlessly along the curtain track. [Cost-effective package]: 2 sets of 12 curtain rings, 24 in total. Can be used not only for shower curtains, but also for bedroom curtains, and even for hanging other items or doing DIY.