Contents: 4-Post server rack rail set x1, 12-24 screws x10, M6 screws x10, M6 plastic washers x10, M6 cage nuts x10 Dimensions: 1.75 in H x 3.46 in W x (20.2 – 32) in D Adjustable mounting depth allows you accommodate various rack sizes up to 32 inches Weight capacity: 110lbs; constructed from heavy duty cold rolled steel with a durable black electro-static powder coated finish EIA/ECA-310 compatible; Fits standard 19’’ 4-post rack and cabinet The RackPath 4-post server rack rail is designed to support your servers in a rack without the need to mount them directly. The depth is adjustable for a variety of rack sizes and configurations from 20 to 32 inches. Constructed from heavy duty cold rolled steel with a durable black electro-static powder coated finish, the rack rail has a maximum weight capacity of 110lbs(50kg). All mounting hardware is included.