1.Material:rubber+steel 2.Type:bolt on 3.Standard:ISO9001-2000 4.OEM excavator track pad 1.Excellent quality and best price2.Size:300mm,350mm,400mm,450mm,500mm,600mm,700mm3.Applicable model: PC30,K030,EX24,EX30,PC28UU,MM35,EX40UR,SH75U,CAT307,PC130-6,EX220,SH100,ZX55,MM45 etc Track Pad for Excavator bolt on type