Easy to install and remove: the shower curtain hooks are easy to open and close, no tools needed, can slide over shower curtain holes and rods easily Good quality: the curtain rings are made of metal, sturdy and durable, can last for long time use and 40 pieces are good for replacement Secure the hook: the curtain hook rings with quick release accessory, snaps firmly to close after install, help to ensure your items do not fall Multi-use: the shower curtain rings are suitable for standard rod, work with most shower curtain or curtain liner; Can also hang other small items Rings hooks dimension: overall hanging hooks size is about 6.8 x 3.8 cm/ 2.7 x 1.5 inches, thickness is 2 mm, come with 40 pack curtain rings in total