Heavy duty ball bearing, under stairs storage runner, up to 100kg, 500mm | DIY at B&Q
2pcs 250-500mm Full Extension Soft Self Close Drawer Runners Slides Ball Bearing | eBay
VADANIA 500mm Heavy Duty Drawer Runners with Lock #VD2053 1 Pair, Max Load 120kg, Side Mount Full Extension Ball Bearing, Industrial Locking Drawer Slides for Shelf, Van, Truck RV Siding Out Storage :
VADANIA VK2053 Soft Close Heavy Duty Drawer Runners 500mm, Ball Bearing 3-Fold Full Extension, Side Mount, 1-Pair