Na-emekarị, roller handle nwere ụzọ abụọ: ụdị EU na ụdị US.Eu style nwere otu mkpanaka, bụ uwe maka mpaghara Europe na ahịa Australia tumadi, ụfọdụ mba ndị ọzọ na-ejikwa ya.Ụdị US nwere ụdị ọnụ abụọ, oghere 4 na oghere 5.Ọ na-ewu ewu na USA, Canada na mpaghara North America ndị ọzọ, mpaghara South America na ndị ọzọ.
Mkpanaka ahụ nwere ọgwụgwọ abụọ, Zinc plated na Chrome plated.Chrome plated ka mma, Zinc plated bụ akụ na ụba.Mkpanaka nwere dayameta abụọ, 5.7 mm na 7.7 mm.7.7 mm siri ike, mana nha 5.7 mm zuru oke maka ọrụ nkịtị.