Overview
Rogue Cannonball Grips are a specialized grip strength accessory designed to enhance hand and forearm power through a wide range of functional exercises. Featuring a unique spherical design and a secure strap system, these grips can be used for pull-up variations or attached to barbells, dumbbells, and kettlebells. Hand-built in the USA, they are an essential tool for athletes in climbing, powerlifting, and obstacle course racing who need to develop superior "open-hand" grip strength.
Product Page: https://www.roguefitness.com/cannonball-grips
Key Features and Specifications
Spherical Design: 3" diameter steel spheres with Rogue's signature textured powder coat for maximum friction.
Strap System: Includes two 12" high-strength nylon straps (available in Black or Desert Tan).
Attachment Tab: Features a 1/4” thick laser-cut steel tab with a mounting hole for high-capacity use.
Hardware: Ships with two heavy-duty carabiners for immediate attachment to racks or equipment.
Weight: Approximately 1 lb per sphere.
Versatility: Can be used for pull-ups, farmer's carries, and cable machine movements.
Manufacturing: Proudly Made in the USA.
Performance Benefits
Advanced Grip Development: The 3" diameter forces the hand into an "open" position, which is significantly more taxing on the forearms and hand stabilizers than a standard 1" pull-up bar.
Joint Comfort: Unlike fixed pull-up bars, the hanging strap system allows the wrists and elbows to rotate naturally into their most comfortable position during movement.
Multi-Implement Training: By looping the straps around barbell sleeves or kettlebell handles, athletes can turn standard lifts into intense grip challenges.
Functional Transfer: Specifically mimics the grip requirements found in competitive rock climbing and tactical training environments.
Maintenance and Care
Powder Coat Care: Wipe down the spheres after use with a damp cloth to remove sweat and oils. For heavy chalk buildup, a soft nylon brush can be used to clear the texture without damaging the finish.
Strap Inspection: Periodically check the nylon straps for any signs of fraying or heat damage. Discontinue use if the structural integrity of the webbing is compromised.
Carabiner Maintenance: Ensure the spring-loaded gate of the carabiner operates smoothly. If it sticks, apply a small drop of dry silicone lubricant.
Oxidation Prevention: While highly durable, if the powder coat is chipped due to contact with other steel tools, touch up the area with rust-preventative paint to prevent surface oxidation.
Warranty Information
Limited Lifetime Warranty: Rogue Fitness warrants the structural integrity and welds of the Cannonball Grips against defects in material and workmanship for the lifetime of the original purchaser.
Standard Exclusions: The warranty does not cover the powder coat finish, standard wear of the nylon straps, or damage resulting from neglect or improper use (e.g., dropping the spheres on hard surfaces).
Frequently Asked Questions
Q: Are these sold as a pair?
A: Yes, the "System" option includes a pair of spheres, two straps, and two carabiners. They can also be purchased as spheres-only or straps-only.
Q: What is the maximum weight capacity for pull-ups?
A: The steel tabs and high-strength straps are designed to support bodyweight plus significant added resistance (as seen in weighted pull-ups), though always ensure the anchoring point (rack or bar) is secure.
Q: Are the spheres bigger than a standard baseball?
A: Yes. A standard baseball is roughly 2.9" in diameter; the 3" diameter of the Cannonball Grips provides a slightly more challenging surface for most users.
Q: Can I use chalk with these?
A: Absolutely. The textured powder coat is designed to hold chalk exceptionally well, which is highly recommended for maintaining a secure grip during long sets.