【Compatibility】Sliding shower door bottom guide fit for shower doors up to 1/2" wide. Shower door track guide fit for sliding shower doors, glass shower doors and tub shower glass. Shower door clips plastic bottom with installation screw. 【High Quality】The shower door bottom guide is made of high quality hard plastic, can be used for a long time and not easy to be damaged. Keeps two glass doors aligned and moving in a straight line as the shower door parts bottom guide slides back and forth inside the metal track. 【Product Information】The sliding shower door parts include one 3" long × 1/2" wide shower door guide and one installation screw. Shower door guide rails are used to replace cracked and broken plastic door top or bottom guide. 【Easy Installation】Shower door plastic guide for sliding doors are easy to install. There is a small hole in the middle of the guide that can be screwed through the small hole to install on the up to 1/2 inch wide shower door, which protects your sliding shower door well. 【After-Sale Service】We are committed to providing you with better service! If you have any questions about the size, material, installation and other aspects of the frameless sliding shower door guides, you can send us an email at any time, we will reply within 24 hours. Shuisen Sliding Shower Door Bottom Guide 1/2" x 3", Shower Door Plastic Track Guide with Screw, Shower Door Replacement Parts Compatibility Sliding shower door bottom guide fit for shower doors up to 1/2" wide. Shower door track guide fit for sliding shower doors, glass shower doors and tub shower glass. Shower door clips plastic bottom with installation screw. Easy Installation 1. Place the shower door guide rail flat on the door frame; 2. Align the small holes of the guide rail with the small holes of the door frame; 3. Tighten the installation screws. (Note: Only suitable for sliding/glass shower doors less than 1/2 inch wide.)