2Pcs Barbell Bar Adapter Sleeve 25mm to 50mm for Fitness Equipment Women Style B Adapter Sleeve: Turn your 1 inch standard barbell or weight post into a 2 inch weight bar or weight post. Material: Made of heavy duty and high quality PP, durable. Size: The outer diameter of this adapter is designed to be exactly 50mm, which matches any 2 inch weight board and barbell collar. Application: For most older style barbells, curl bars, and plate loaded weight machines. Easy to carry: The length of the adapter sleeve fits perfectly in a gym bag for easy portability. ? Specification: 5cmx30cm/1.97 inch x11.81 inch Package Includes: 2x Adapter Sleeve Note: Please allow slight errors due to manual measurement and different monitors. Package Including 2x Adapter Sleeve