Rubber O-rings for Fotoconic Background Support System Tube Crossbar

FeaturesSecure Background Paper Roll: The rubber O-rings can be attached to both ends of the aluminum tube to secure the background paper roll, improving grip and preventing unnecessary sliding during use.Enhanced Stability: These O-rings provide better traction on the background paper roll, ensuring that the roll rotates smoothly when the lever is turned.Material Composition: The O-rings are typically made from elastic rubber. Their inherent elasticity allows them to return to their original shape after compression, ensuring long-lasting sealing performance even after repeated use.Compatibility: Designed for use with the Fotoconic Metal / Alunimium Tube Crossbar or other similar crrossbars with similar thicknessSpecificationSuitable for 1.9 inch aluminum tubeInner Diameter：55mmOuter Diameter ：47mm