This 2” x 4” Nylon rollers with 2 pc bearing provides superior load carrying capacity and friction reduction. Its 5.5” rod, 1 pin, and 2 pc Circlip ensure a secure fit and long-lasting performance. Tests show that this Nylon roller offers up to 70% more load capacity than similar products in the market, making it the ideal choice. Parts included: X2 Nylon rollers with 2pc bearing X2 Pins X2 5.5” Rods X4 CirClip Additional Details ------------------------------ Product description: This 2” x 4” Nylon rollers with 2 pc bearing provides superior load carrying capacity and friction reduction. Its 5.5” rod, 1 pin, and 2 pc Circlip ensure a secure fit and long-lasting performance. Tests show that this Nylon roller offers up to 70% more load capacity than similar products in the market, making it the ideal choice. Parts included: X2 Nylon rollers with 2pc bearing X2 Pins X2 5.5” Rods X4 CirClip