160 Pack metal curtain rings hanging rings for curtains and rods, 30 mm internal diameter Heavy duty curtain ring:Make full use of duty metal and design, the bearing is good, and not deform or drop out suddenly. and 't rust:The silver metal curtain ring are made of metal, nonporous and therefore last for years without rusting. scratch:Nice polished and smooth without burrs to your curtain, snagging, tugging and pulling of the curtain. Widely apply:The curtain rings are in silver, wide applied for most kinds of curtains, such as shower curtain, window curtain, french window curtain and so on. colour:Silver Material:metal Size: Outside diameter: 40mm Inside diameter: 32mm Package Contents: 160 x Curtain rings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.