Simple curtain rings for all curtain poles with 20 mm diameter, including sliding insert and folding hooks Easy to attach: simply hang the curtain in the folding hanging hooks, easy to insert the rings into the curtain rod Multiple combination options: robust metal curtain rings with sturdy folding hooks for hanging different curtains and curtains without loop Easy to put on and close: easy and quiet movement of the curtain thanks to sliding inserts in the rings, no damage to the curtain rod Box contents: 1 x GARDINIA curtain rings set for curtain poles with 20 mm diameter, including sliding insert and folding hooks, 10 pieces, Chicago series, inner ring diameter: 27.5 mm, outer ring diameter: 34 mm, width: 4 mm, matte black