Description If you are looking for apulley roller with reliable and reasonable design, I will tell you that our pulley roller will be your good choice. The pulley roller adopts good POM material, so you cankeep the pulley roller for longtime. Features -Color:White -Material:Plastic, metal -Size:3.50X1.00X1.00cm/1.38X0.39X0.39in -Reliable design: Safe and reliable to use, not easy to break or deform, reusable and can be applied for a longtime -Quick and easy installation: the product can be easily and conveniently installed directly onto the track, without the need for complicated or time-consuming installation processes -Strong bearing: Bearing capacity is strong bearing. Surface process, fine workmanship and wear resistance -Sturdy design: Characteristic and exquisite with professional design. Simple and generous design, smooth in lines -Widely used: Has a wide range of applications and can be used for patio doors,cabinet door , patio sliding doors, etc Package list: 6 x Roller Wheels