Traditional single foam rollers can be hard to balance on and can apply too much pressure making it hard to perform the desired myofascial release. The Multi-Roller connects together helping with balance allowing one to maneuver on the adjacent rolls to establish the preferred pressures for myofascial release and massage. This foam roller system can be used to hit 1, 2 or 3 places at once. Quick release pins for adjustment. 17"L x 6" Diam. Can be used as single roller. 5 lbs