Bộ đồ chơi lắp ráp kính thiên văn bằng gỗ DIY cho trẻ em

1.Type:DIY Telescopic Monocular Telescope 2.Material:Wood 3.Power:NO 4.Size:11-16*20cm(L*H) 5.Healthy and Eco-friendly materials,edutainment. 6.DIY science kits toy make children's own toy. 7.DIY science kits,we allow children to construct objects , builds motor skills, and enhances creativity. 8.It Can excite children's curiosity and promote imagination, developing intelligence, exercising the ability of using hands and brain. 9.Through experiments,we can foster kids sharp observation ability, deliberate thought ability, strong practical ability and creation ability. 10.Please use under adult supervision and guidance.Parents and children to assemble it together to improve parent-child relationship. 11.It's useful for keeping track of unproductive habits, like play phone and online game for a long time. 12.Increase the fun between children.Very nice gift for them. 13.Principle: Telescope is a kind of visual optical instrument used to observe long-distance objects, which can magnify the very small angle of the distant object by a certain magnification, so that it has a large angle in the image space, so that the object that could not be seen or distinguished with the naked eye becomes clear and discernible. Therefore, the telescope is an indispensable tool in astronomy and ground observation. It is an optical system that enables the incident parallel beam to remain parallel through the objective lens and eyepiece. Package includes: 1 * DIY Telescopic Monocular Telescope 1 * Instruction