HIGH QUALITY MATERIALS - These white curtain rings and hooks are made from high quality plastic materials that are hard, have smooth burr-free edges, are clean and odorless and do not wear or warp easily. GREAT VALUE PACK - You will get a total of 50 plastic curtain rings with an inner diameter of 1.1 in / 28 mm and an outer diameter of 1.7 in / 44 mm. There are also 50 white plastic hooks included for your daily use. EASY TO INSTALL- Our white curtain rod rings are simple in design and quick and easy to install. Connect the curtain hook to the curtain ring, pass it through the curtain rod, and the curtain can slide. RANGE OF APPLICATION - These 28mm plastic curtain rings are suitable for curtain types such as lightweight curtains and fabric curtains as well as curtain rod types such as wooden curtain rods and metal curtain rods. SMOOTH SLIDING - The inner rings of these plastic curtain rings are made from nano materials that do not slip off easily and do not create much noise during use.