Universal 1U/2U/3U/4U ball bearing 26" sliding rails, very thin Quantity in Basket:noneCode: KRI-USR26 Price:$76.00Shipping Weight: 15.00 pounds Quantity: 3-section Ball Bearing rails * Heavy duty 26" Ball Bearing sliding rails, NOT friction type. *Good for 1U, 2U, 3U, and 4U chassis(including NORCO chassis).