GripSling Raw Training Straps As seen on INSTAGRAM: @GripSling Develop superior GRIP STRENGTH with your simple yet highly-effective training straps. VERSATILE workout tool used for a variety of DYNAMIC training methods. DURABLE heavy-duty cotton material is COMFORTABLE and easy to use. Veteran owned & proudly manufactured in the USA! 100% money-back satisfaction GUARANTEE!! Obstacle Course Racing (OCR) Rock Climbing &amp; Bouldering Mixed Martial Arts (MMA) Brazillian Jiu Jitsu (BJJ) Ninja Warrior Pull-up bars &amp; dip bars Kettlebells &amp; weights Conventional gym equipment (pulley machines, Smith machines, training rigs/ racks, etc.) Unconventional resistanceobjects (cinder blocks, water jugs, wood logs, etc.)