1.plastic caster wheel 2.materail:PU 3.color:black,grey,white,gold,blue etc ,various per customer requirement Antique caster wheels, PU caster wheel with metal ... / 38*38*1.5 / 38*38*2 /42*42*25)black, white, grey,silver ,gold ,blue or other colors are available ... - standard wheel, plastic parts ; accessories ; hand spring ; standard spring.ETC. PU caster wheel with metal pin