Hand Exercisers features: 72mm Pull Up Balls Cannonball Grip Finger Trainer Wrist Strength Training Arm Muscles Barbells Gym Hand Grip Ball Exerciser| Hand Grips(Yellow) 7.2mm Pull Up Balls Cannonball Grip Finger Trainer Wrist Strength Training Arm Muscles Barbells Gym Hand Grip Ball Exerciser Specification: Product Name:Pull Up Balls Cannonball Grips Material: Ball - PU, Webbing - Nylon, Carabiner - Stainless steel Color: Yellow Features: The grip ball is made of non-slip PU material and groove design. Application: Indoor Fitness,Body Building With stainless steel rings Small ball diameter 7.2CM/2.83in Hanging strap total length about 26CM/10.24in Stainless steel hook total length about 9CM/3.54in Feature: 1.PRACTICAL: Pull-up ball can be a handy handle for gym equipment, increases forearm muscles and grip strength, boosts endurance and explosiveness. It is ideal not only for normal fitness, but also for extreme sports such as rock climbing enthusiasts, wrestling, ninja s, gymnastics, and parkour. 2.DURABLE & SAFE: The ball is made of composite material, the carabiner and all other metal parts are made of 304 stainless steel, the webbing is made of Nylon, all these hardware makes and their connections are heavy duty and sturdy, more than adequate. Maximum load capacity: 661LB/300KG 3.PERFECT DESIGN: This pull-up ball design bring more fun to your exercise. The ball has many spherical grooves, so your hands are not easy to slip off. The ball has 2 different diameters for your choice, according to the size of your hands and whether you are beginner or professional. 4.LOW-IMPACT & ADVANCED FITNESS: It is great for men and women. Fun, open-hand design. Muscles tendons lay ergonomically & train efficiently. Excellent to add into your workout routine. 5.SIMPLE TO USE: An excellent addition to your workout routine. Switch between pull-ups and chin-ups without ever letting go. Easy to setup and use, and its insanely fun to be on. Note: 1. It is more uniform to use water sprayer to spray water to the conduction point. 2.There may be slight size deviations due to manual measurement, different measuring methods and tools. 3.The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Package Included: 2* Grip Ball 2* Lanyard 2* Stainless Steel Hook