Description Are you looking for a professional and practical 2-wheel trolley assembly? If yes, look no further! Our 2-wheel trolley assembly must meet your needs. This sliding door roller is made of steel material, durable and sturdy for long-lasting use. Fine workmanship practicality and durability. Features -Color:Silver -Material:Steel -Size:6.20X2.50X2.20cm/2.44X0.98X0.86in Bearing ability: 50kg Screw hole: 8mm - Middle support, high strength, impact resistance. Steel material, anti-rust to use. - Smooth rotation, can bear up to 50kg weight. Bearing welding positioning to ensure the stability of work. - Easy installation and smooth corners, anti-rust, perfect for various outdoor environments. - Suitable for doors of living room, kitchen, warehouse, garage, barn and more scenes. - Stable characteristics, high performance and in great reliability, simple, easy to install. Middle support, high strength, impact resistance. Steel material, anti-rust to use. Smooth rotation, can bear up to 50kg weight. Bearing welding positioning to ensure the stability of work. Easy installation and smooth corners, anti-rust, perfect for various outdoor environments. Suitable for doors of living room, kitchen, warehouse, garage, barn and more scenes. Stable characteristics, high performance and in great reliability, simple, easy to install.