... ,white,gold,blue etc ,various per customer requirement Plastic caster wheel Features:1) Material: nylon2) Dia 30/40 ... fixing plate as per your decision. Pin size :DIA.6*20 / 8*20/ 8*22/ 11*22 Scew ... grey,silver ,gold ,blue or other colors are available.6)used for movable furniture,especialy wood cabinet;7)loading ... ; accessories ; hand spring ; standard spring.ETC. plastic caster wheel ,50mm pressure ...