Quality and size: Made from quality plastic material, these curtain track rollers are designed to protect your curtains. The wheel diameter is 14 mm, compatible with 14 mm curtain rails. Dimensions are approximate. What you get: Includes multiple curtain track rollers (long tracks not included), ideal for large curtains. Suitable quantity for use in multiple rooms or homes, with extras to share. Smooth sliding: Rollers move freely and slide smoothly within the track. Compatible with various track shapes for seamless operation. Versatile use: Ideal for room dividers, window treatments, shower enclosures, trailers, and other compact spaces where privacy is needed. Simple installation: Easy to install; ensure proper fit by checking your track size. Designed for beam curtain tracks, allowing smooth movement from open to closed positions. Color: White Material: Plastic Size: Total height approximately 40 mm Package Contents: 50 x Ceiling Curtain Track Rollers Note: Light and display settings may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.