1.Place of origin: guangdong, china (mainland) 2.Brand name: kav drawer slide 3.Model number: 663fli(with handle) 4.Lengths: 300mm to 550mm 5.Mateial: environment-friendly galvanizzed sheet 6.Load capacity: 25kg 7.Open-close movement: more than 50, 000 cycles test certified 8.Open means: full extension 9.Install: undermounted 10.Thickness of board: 16mm 11.Usage rage: suitable for all kinds of wooden drawer 12.Finish: zinc plated 13.Packing: 10sets/ctn or as customer's request. 450mm: net weight: 13kg/ctn, 10sets/ctn; gross weight: 14kg/ctn, 10sets/ctn; cbm: 472*230*100mm. 500mm: net weight: 14kg/ctn, 10sets/ctn; gross weight: 15kg/ctn, 10sets/ctn; cbm: 522*230*100mm. 10sets/ctn or as customer's requst.