Features: Versatile Training Tool: The rock climbing solid training cannonball is designed for both rock climbing enthusiasts and fitness lovers, making it perfect for bouldering, pull-ups, and kettlebell workouts. Enhanced Grip Performance: Our power pull up ball hold grips provide a non-slip surface that enhances grip strength, allowing you to focus on your form while maximizing your training efficiency. Complete Training Set: This rock climbing holds training set includes various grips to target different muscle groups, ensuring a comprehensive workout that builds arm strength and improves climbing skills. Family-Friendly Gift: Ideal for all ages, this arm strength trainer pull up grip makes a thoughtful gift for your family and kids, encouraging a fun and active lifestyle while developing strength. Strength Training Attachment: Designed for easy use with kettlebells and other equipment, these pull up handles non-slip strength trainer attachments enhance your workout routine and challenge your limits. Specification: Material: PU Ball Diameter: 7cm, 9cm Notes: Please allow slight tolerances in size due to manual measurement, and lighting in photography may result in a difference in color than in real. Include: 1 Pair of Pull Up Power Ball Hold Grips Set