Specification:product name: kangaroo jump bagmaterial: oxford clothproduct color: blue, yellow, red, greenproduct size: 55 * 35cmapplication: 90cm-130cm childrenPacking list:4 * kangaroo jumping sackEasy to use: The racing bags are suitable for every occasion and for children of all ages. The runners slip both legs into the bouncy sack and hold it at the top. Then see who can jump the fastestHOLHigh quality: Made of canvas material and a double bottom, the jumping bags for children are robust and strong enough to withstand this tough game. You wont worry about the broken problem during the game.Perfect for Outdoor Games: bring everyone together and have fun with these bagsLots of different games available to playThe sack race set is great for outdoor party games, BBQs, picnics, family gatherings and more.Big Perk: The sack races encourage kids to choose their sporting activities and be ready to compete. Its a great exercise that can improve athletic skills and help improve balance and coordination skills.Fun for Kids and Adults: This is a great game that anyone can participate in. Play with these sack races to have a pleasant and meaningful vacation with your family and friends.