Features:PE roller is a water-soluble polypropylene sour, the back gathers ethylene,mainly useding for the specialized clearance dust of the semi-conductor factory,in addition to the dust result shows. the product design become to incise totake a form, toring easily, don't staying remnants gum, the roller head can replace,the product has the white and sky blue .Application:Useding for profession and other decontaminations of the semi-conductorproduction has no dust car to sweep cloth and woolen blanket, floor, work set,the product surface uses. the product suited for different work place.HW-4 4" 120 layer/roll,200roll/cartonHW-6 6" 120 layer/roll,100roll/cartonHW-8 8" 120 layer/roll,100roll/cartonHW-10 10" 120 layer/roll,60roll/cartonHW-12 12" 120 layer/roll,50roll/cartonHW-21 21" 120 layer/roll,50roll/cartonAlso, we can product in your special order, if you need more. producing area:Made in china KUNSHAN HUAWEI