Convert 3" attachments to fit 2" tube power racks effortlessly Increase the versatility of your power rack without purchasing additional attachments High-Density Plastic construction ensures durability and stability during intense workouts Seamless magnetic design for a secure and stable fit Compatible with a wide range of attachments such as dip bars, landmines, and pulley systems Sold as a pair (2) Spacers are 3" x 2" x 1/2"