These jump leg are made of materials and are safe for children. It is specially designed for entertainment purposes. It is a good toy for outdoor entertainment and one of the best fitness equipment. It is suitable for fitness and leisure activities, etc. It is a good children. Features - ColorAssorted Color - Material: ABS. - Size: About 14.00X7.00X7.00cm/ 5.50X2.75X2.75inch. - It will provide your child with hours of active, indoor and outdoor entertainment. - Promoting body metabolism, the effects of this exercise are better than skipping and running, more interesting than skipping and running. - Put one foot , the lightweight ball can swing easily without hurting the ankle. - Whether youre looking for a fun new exercise or the perfect way to get kids outside, this for and kids is perfect for everyone. - toy helps to motor functions while burning excess energy and giving kids a fun cardio workout to do with friends. Package list: 5 x Skip Ball