... is very smooth and quiet 1,PLATFORM HAND TRUCK,150/300kgs2,the platform is plastic,3,handle is powder ... and quiet5,caster size is 100mm/125mm6,size of platform,150KGS:LXW=730MMx490MM,300KGS:LXW=900x600MM7,net weitht of ... .We can offer you the good quality and the best price.Our products is very popular in USA, EUROPE ... please feel free to contact me.Thanks and best regards PLATFORM HAND TRUCK 150/300KGS