1. Life waterproof,which can better extend the service life of the telescope.Easy to deal with any harsh environment. 2. BAK4 prism and multi-coated lens for improved light transmission and image clarity. 3. Central focusing knob for smooth operation. 4. Broadband green film coating to increase light transmittance and make the imaging color fuller. 5. Lightweight and compact, good for camping, hiking, concerts, bird watching, hunting, traveling, golfing, sporting events and other outdoor activities. Model:500x25 Lens coating:Blue film eyepiece, Green film objective lens Size:9x10.5x4cm Metal pallet, with better quality and improved anti-falling performance, can effectively prolong the service life of telescope, which is unmatched by other plastic pallets! Note:Due to different factory batches, slight differences in appearance will not affect the use. Colour:Silver Material:Plastic Package Contents: 1 * Auto Focus Telescope Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.