The Tecno Jumbo Toolbox has everything a child needs to build a world of trucks, excavators, cranes, or anything else that comes to mind. There are 86 pieces included screws, bolts, wingnuts, wheels, and perforated plates, made of resistant shatterproof plastic, which can be assembled without the need for special tools. All a child needs is their hands and theyre imagination. And when playtime is over, everything fits back into the handy toolbox for storage. The box has a handle and a cover that can be used as a base for playing on. This building toy stimulates coordination as well as logic and creativity, helping children to understand basic principles of mechanics while enjoying themselves. Comes with 24 x bi-dimensional threaded pieces, 14 x 3 dimensional threaded pieces, 46 x screws, bolts and washers and an instruction booklet with 5 building examples. Suits ages 3 years +.