NameCurl bar Weight7 kg plus or minus 1% Diameter28mm SpinBronze Bushing&Stainless Steel Bushing KnurlModerate Center KnurlNo Knurl Marks2 Section Flower FinishChrome Sleeve CoatingChrome ColorSilver The bending rod is machined and assembled, using bronze bushing, snap ring design and delicate knurled pattern. Many athletes can benefit from this special camber bar because the camber of the shaft helps limit the pressure on the wrist and reduces the common risk of injury. Weightlifters can also use a narrow grip on the Curl Bar for triceps stretch and clenched curls. Curl Bar's 50mm diameter sleeve is compatible with most weight plates, but the 780mm space between the sleeves means that the design of the bar is not convenient for placement. Bearing Curl Bar is one of the few special types of bars that have been completely designed, processed and assembled. The diameter is 28MM, and the total length is 1200MM. It has been precisely bent to the highest standard. It has a bronze bushing that can be used as a supporting surface between the rod sleeve and the shaft, and the bearing provides a smooth rotation. Reduce the joint damage of the wrist. The sleeve is assembled to the shaft using the same snap ring design as many of our most popular Olympic bars. Knurl The curved shaft of the traditional Curl Bar has been trusted by experienced, beginners and trained athletes for many years. This is a way to reduce the pressure on the wrist during high repetitive exercise. Curl Bar has exquisite knurling, and the knurled edge is flat and clear. The surface is electroplated and the sleeve is smooth. Packing Our products will be strictly controlled by quality. Every barbell bar will be printed with the date of delivery to ensure the quality. Each barbell will be covered with plastic film and placed into a 6MM paper tube, with both ends stuffed with sponge.To minimize damage to products during transportation.Customized Special Barbell website:http://www.keroxfitness.com/barbell/special-barbell/