1.Item No: BBS450Z 2.Self closing Full extension ball bearing slide 3.Thickness: 1.0/1.0/1.2mm;1.1/1.1/1.4mm;1.2/1.2/1.4mm 1.Item No: BBS450Z2.Self closing Full extension ball bearing slide3.Thickness: 1.0/1.0/1.2mm;1.1/1.1/1.4mm;1.2/1.2/1.4mm4.Color: White zinc Plated and Black5.Length:250mm-900mm 45mm self lock ball bearing slide