This telescope is quick and easy to set up even for the novice and will encourage kids to love learning about space, great gift idea for kids who love science and astronomy. Using prism imaging:can effectively avoid vignetting, restore color, small color difference, and night vision effect is stronger. Aftermarket: All products are inspected before shipment, if you have a problem with the product, please do not hesitate to contact us. Size: 87x24x17cm.