Byrdband Arm Trainer

Maintains upper arm and lower arm at 90 degree angle. Allows you to concentrate on proper running form. Easy to use. Adjusts for all body types. Black, One pair per pack.

NOTE: BYRDBAND STRIDE TRAINER (SHOWN) NOT INCLUDED, PURCHASE SEPARATELY.

WARNING: Products may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. See www.P65Warnings.ca.gov for more info.