... excellent quality for sliding windows. Roller, wheel, window roller, window wheel, door roller, door wheel, sliding roller, ... sliding wheel for UPVC/Aluminum window door1.Material:nylon2.style nbr:GL-R0073.Run ... white, black etc.) or plating (imitation gold,chrome,nikel)7.Loading capacity:80 kg8.packing :ploy ... , black etc.) or plating (imitation gold,chrome,nikel) Iron Window Roller