Personalised Engraved Newton's Cradle

See Isaac Newton's laws of motion in action - for every action, there is an opposite yet equal reaction! This classic desk toy is perfect for the office at work or the study at home. It's compulsive and captivating - you can't help playing with it - and that, of course, makes it an ideal men's gift. It's retro, stylish design combines a black wood base with polished silver struts and ball bearings making this a great addition to any man's desk. Just don't expect him to do anything useful once he's got one! Ideal gift for anyone who prides themselves on knowing the laws of physics. Pure genius!