1.Matching round pas nrig: zoo nkauj thiab ruaj khov
2.Handleless tsim: yooj yim thiab zoo nkauj tsos
3.Ob-dimensional hloov: ib-khawm disassembly, yooj yim hloov
4.High-strength embracing nylon roller: lub tub rau khoom tuaj yeem ruaj khov txawm tias nws yog overloaded