Features: 1With silent bearing built-in smooth ball bearings sliding silent you can use it safely. 2Thickened fixed iron sheet and thicker fixed frame can fix the sliding door more firmly. 3Multi-bearing design multi-bearing fixity to increase the stability of the crane sliding more stable. 4It only needs two lifting wheels to move the door easily. It is suitable for single sliding doors folding doors and multiple sliding doors. 5The multi-layer electroplating treatment on the surface can increase the acid resistance alkali resistance and corrosion resistance of the crane. 6L-shaped removable insert design complete accessories simple installation and disassembly. 7Solid body solid feel design according to gravity it has strong bearing capacity. Specification: Condition: 100% Brand NewItem Type: Door LockMaterial: Stainless SteelSingle Wheel Bearing Capacity: 10kgWeight: Approx. 610g / 21.5ozSize: Approx. 12x2.5cm / 4.7x1.0in.w-e-text table td.w-e-text table th Package List: 2 x L-shaped Inserts2 x Pulleys14 x Small Screws2 x Medium Screws4 x Big Screws2 x Small Iron Sheets4 x Bolts2 x 7-Hole Rubbers1 x 2-Wheel Bearings Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.