Thames & Kosmos Hydraulic Boxing BotsIn this corner, hailing from the rough and tumble robotics lab: Its Robo Boxer! And in that corner, the wonder from Down Under: Put your mitts together for Kangaroo Bot! Ding! Ding! Jab, dodge, uppercut! These boxing robots use hydraulic power to move like real boxers. Packed with the excitement of a boxing match and the fun of constructing incredible mechanical models, this kit allows you to build two boxing robots and challenge a friend to a match.