Heavy Wardrobe Sliding Door Hanging Roller - Surface-Mounted Track Slot Accessories (Durable, Smooth Operation, Easy To Install)

Good luck with your favorite purchasesName: wardrobe door pulleymaterial: nylon pulley   + iron shellSpecifications: as followsScope of application: wardrobe sliding door friendly reminder:The difference between Type A and Type B is that the upper wheel is different The lower wheel weighs about 160 grams. The upper wheel weighs about 40 grams ( Type A)30 grams( Type B) Reminder: As the above data are manually measured, the error is about 1-2mm, please forgive me for small errors.