Bring the fun with the Thames & Kosmos Hydraulic Boxing Bots kit. Designed for ages eight and up, this kit lets young learners pit two robots, Bobo and Roo, against each other in a high-tech boxing match with plenty of jabs, dodges and uppercuts powered by handheld hydraulic controls. Complete with elaborate shoulder gestures, two boxing punches, three waist postures and swappable heads, these beefy bots deliver some real action while engaging young minds' curiosity and teaching key principles of hydraulics. The Hydraulic Boxing Bots kit contains 327 pieces.