Down Press Clamp Straight Rail (for 350-CS and 550-ES) Tourna Air Cell is a

Tourna Air Cell is a Tennis Elbow Brace that uses pneumatic pressure to relieve the pain

double re-enforced polypropylene

Deuce is an advanced co-poly offering huge spin and durability

making it the perfect addition to your gear collection

TOUGH AND LIGHTWEIGHT: Made of tough but light polypropylene

Down Press Clamp Straight Rail (for 350-CS and 550-ES) Tourna Air Cell is aDown Press Clamp base Straight Rail fits the 350 CS and older 300 CS machines, and the 550 ES Includes one rail and one clamp base Excludes clamp Sold one at a time. Select 2 for a pair. Warranty voided if clamp is separated from the rail Not a universal fit for other stringing machines