Ugears is the creator and manufacturer of unique mechanical 3D DIY model kits for adults and kids. These beautiful mechanisms move without batteries or any external power source as they are powered by rubber bands, springs, gears, cranks and gravity. The models are made entirely of art-quality plywood and require neither glue nor special tools – just follow the detailed step-by-step illustrated manual with instructions in 11 languages to assemble your model. The Ugears collection consists of over 100 models of various levels of complexity (0.5–12 hours of assembly), including cars, trains, planes, ships, automatons, boxes, marble runs, clocks, musical instruments, fidgets, game devices and models from educational STEM Lab collection. Ugears is a smart hobby and a perfect gift for any age and interests!