Universal 3x3 Compatibility – Fits any rack with 3" x 3" uprights and 1" holes, from any brand. Heavy-Duty, Space-Saving Storage – Sold in pairs, each stainless steel peg offers 11.1" of loadable length and safely holds up to 600 lb of Olympic plates. Made for Olympic Plates – Designed for standard Olympic plates, so your existing plates drop on and off with ease. The pegs sit on a subtle 3° upward angle, making plates easier to slide on while helping keep them from slipping off.