★ QUICK OVERVIEW : ★ Material → Made of high quality carbon steel material, powder-coated black finish, rust resistant and corrosion resistant, durable and reliable. ★ Size → Front arm height: 1-1/8". Back arm height: 1-7/8". Arm thickness: 1/8". Bottom thickness(excludes bolt head): 1/4". ★ Suits For → Fits non-grooved door thick from 1 to 1-3/8 inch, please check the space between door and wall. ★ Practical & Elegant → This guide mounts to the wall behind the door and doesn't stick out like those models with the bulky wheel. More safe and give your sliding door a clean look! ★ Completely Flush Bottom → Flush bottom ensures the door guides sit on the floor without scratching the floor, more stable and beautiful. ★ Suggestion → They are small guides with 1-1/8" front arm height, we suggest a higher wall mounting for excess door bottom space. ★ Please Note : 1.Please allow 1-10 mm error due to manual measurement, please make sure you do not mind before purchase. 2.Because different computers display colors differently, the color of the actual item may vary slightly from the above images.