SPRI Speed Jump Rope is an adjustable 9ft long jump rope that easily adjusts to any length and is designed for high-performance speed rope exercises. The non-kink covered cable works to minimize friction to enable quicker revolutions. The textured handle grips allow for a tighter hold, and the internal ball bearings ensure smooth motion for speed, comfort and control. Jumping rope is a preferred exercise routine for personal trainers and athletes to boost cardio, stamina, agility and endurance. SPRI products are built to a professional grade quality and designed for commercial gyms and clubs to be used 100 times a day versus 100 times a year in a home gym.