... 450,500,550,600,650,700mm5.Material: Galvanized steel / Work hardened cold rolled steel6.Finish: GA. / Clear Zinc ... requiredFeatures:1.When the drawer closed , you just push front panel of drawer ,the drawer will self open ... , when you push the drawer again the drawer will be closed ... in pairs.Product drawing: 45mm height Push-TO-OPEN full extension ball bearing slides