... 3.indoor caster,non-marking caster TPR rubber bolt hole casterSpecification: Size50*18mm,75*21mm,100*27mm,125* ... steel finishingZinc plate finish/chromeFeatureTPR rubber ColorgreyMounting waysone bolt hole casterMounting sizeM10/M12capacity40-140kgsUseageindoor caster,floor protected caster, ... type,flat stem type,swivel&swivel with double brakebolt hole type,swivel&swivel with brake is available Main ...