4Pcs Nylon Slide Gate Roller with Stable Bolt Fixation Low Noise Smooth Rolling for Yard Gate Indoor Room Door Garage Door

High-concerned chemical : None Material : Plastic Origin : Mainland China sliding door roller : pulley pulley block : patio door rollers sliding gate hardware roller set : pulley wheel pulley roller : gate wheel slide gate guide : gate guide roller gate guiding wheel : electric gate wheel pulley gears : rail gate rollers gate wheels : sliding gate wheel gate roller : slide gate roller sliding gate roller : wheel roller for pulley block