Specification: Brand Name:COMET Type:Binoculars Model Number:TC02 Model:10X25 Eyepiece:15mm Exit Pupil Diameter (mm):2.5 Coating:Fully Multi-coated green film Prism:BAK4 Size :100x105x45mm Weight (grams):265g Viewing distance:5m-5000 m Magnification: 10x