... wheel type is super artificial rubber wheel with top plate and total brakeColor:greyWheel diameter/Three size available:75 ... from 70 - 140kgs.Assembly size for top plate: 73X45mmHole diameter on top plate:8.5mmTurning radius/Three size available:74,86 ... ,98mmOverall height/Three size available:107,130,155mmThickness of plate: 3mmApplication area: medical indurstry,enviroment protection area,paint ...