A golf bag (100) comprises a rotatable roller (116) upon which the bag (100) can be supported while being moved. The roller (116) is axially elongate and has outer portions (120) whose axial section has a convex curvature to reduce damage to ground over which the bag (100) is moved. Also disclosed is a golf bag accessory (200) comprising mounting means (206) for receipt of a portion of a golf bag (202). The golf bag accessory (200) further comprises securing means (204) for securing the golf bag (202) in the mounting means (206) and a rotatable roller (116) which is axially elongate and comprises an outer surface whose axial section (120) has a convex curvature.