1 Pair 18-60 in Soft-Close Drawer Slides Ball Bearing Full Extension servers and two wheels have brakes

and two wheels have brakes to keep the trolley stable in place

Material chair base: Steel

Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner

Work great as a camping mattress

1 Pair 18-60 in Soft-Close Drawer Slides Ball Bearing Full Extension servers and two wheels have brakes1 Pair 18 60 in Soft Close Drawer Slides Ball Bearing Full Extension 500 lbs Load Capacity Security Assured Sturdy and Durable Versatile Easy & Quick Assembly User Friendly Design Suitable Drawer Length: 18. 5" 470 mm,Extension Length: 18" 457 mm,Load Capacity: 500 lbs 226. 8 kg,Item Model Number: 7601Z 18",Product Dimensions: 19 x 3 x 0. 77" 490 x 76 x 19. 5 mm,Load Capacity (Fully Extended): 500 lbs 226. 8 kg,Net Weight: 9. 85 lbs 4. 47 kg