Our custom drapery rings are made from high quality cast acrylic and will not scratch the lucite curtain rod. Lucite rings are sold separately and individually to allow you to customize your order for your space. --- SIZING & SPECS --- Dimensions: Rings are for 1.37" diameter or 1.5" diameter curtain rod. --- PRODUCT DETAILS --- Finish Options: Clear Material: Cast Acrylic --- FAQs --- Q: Will the rings scratch the lucite? A: No! The lucite is very durable and does not scratch. The rings glide nicely when curtains need to be opened or closed.