【4 Pcs Shower Door Rollers】: Including 2 upper rollers,2 lower rollers,4 sets of bumper blocks and stainless steel screws.Rollers are removable and cleanable.Suitable for 12-14mm glass aperture; the upper wheel can be adjusted into 8mm in height.
Shower Door Rollers with Twin Wheels Pulleys 25 mm are ideal for installing curved doors or glass doors as they provide smooth, controlled motion with twin wheels and strong, durable pulleys.
