Item Type: Cordless Jump Rope Material: ABS, PVC, Steel Wire Rope Weight: Approx. 552g / 19.5oz Battery: Button Cell LR44, 140mAh (Built In) Package List 2 x Jump Rope Handle 2 x Weighted Ball 1 x Long Rope 1 x Screwdriver 4 x Accessory 1SMART COUNTING: With smart counting function, it can accurately record the number of rope skipping times. No matter how long the jumping time is, the counting is still accurate and will not miss or over record the number of jumping times. 2FLEXIBLE ADJUSTABLE ROPE LENGTH: The length of the rope can be adjusted flexibly without cutting, which is suitable for people of different heights. This means that the whole family can use the same jump rope, convenient for family members to exercise together. 3PORTABLE: The cordless jump rope is easy to carry and can be used for exercise anytime and anywhere. Whether it is indoor training outdoor exercise, a jump rope can meet the demand. 4EFFECTIVE SHAPING: Jumping rope is an efficient aerobic exercise. It can help shape up and improve physical quality and fitness level. 5WEIGHTED DESIGN: This cordless jump rope comes with a weighted ball. Compared with traditional jump rope, this weighted jump rope can bring stronger fitness effect.