Robotime - Leonardo da Vinci's Helicopter Mechanical 3D Puzzle spo-disabled Rear Width: 180mm (7")

Rear Width: 180mm (7")

It is compatible with a full range of the most popular battery types

4V oz-in): 277

65 inches (16

2x Metal Shield Bearings 7x14x3

Robotime - Leonardo da Vinci's Helicopter Mechanical 3D Puzzle spo-disabled Rear Width: 180mm (7")Be inspired to invent and create with the ROKR Leonardo da Vinci's Helicopter, a DIY puzzle kit based on the genius's 15th century ideas of a flying machine. The brilliant engineer and inventor Leonardo Da Vinci's sketched flying machines long before the technology or the materials to make this possible were invented. Today, ROKR brings this vision to life with the Leonardo da Vinci's Helicopter, a mechanical 3D puzzle that features double helix