4PCS/Pack Glass Sliding Door Pulleys,For the Bathroom Pan Shower Door Rollers/Runners/Wheels,Strong Load-bearing Capacity, Ultra-quiet (Roller diameter 19mm, YQl03-4Pcs)

SIZE: Roller diameter 19mm.inner 4mm .M4 screw,Wheel thickness: 5mm/Shower Door thickness :4-6mm | SHOWER DOOR WHEELS: Includes 1 pack of 4 wheels with the installation screws. Save your shower door and save money by replacing the wheels on your shower. | EASY TO INSTALL: Easily install these wheels using the screws includes in the set and a Phillips head screwdriver. Once these are installed your shower door will slide easily. | HEAVY DUTY: The Ultra Hardware wheels are built to last using the highest quality material and construction. Solid nylon wheels with ball barring axel in the center. | SAVE TIME & MONEY: You can save time and $100s to $1,000s of dollars by replacing the wheels instead of the shower or sliding door when the old wheels give out.