Double Extension Runners 45mm Ball Bearing 45kg Max 550mm

Made from galvanized clear zinc plated steel
the runners are guided by two ball cages (linear ball bearings)
carrying capacity of 45kg (100 lbs),
suitable for either side mounting (non-handed) or fitting into a 45mm wide x 12.7mm deep grooved drawer side.
They are sold in pairs, have a quick disconnect (by depressing lever) and stay closed feature.
Full extension means that the drawer will come out of the cabinet by the quoted runner length.