Great for target shooting or small game hunting, Tasco's Rimfire Riflescopes fit .22 rifles and airgun receivers. Featuring variable power (3-7) for versatility and longer shooting ranges. Inexpensive with a fine glossy finish. Magenta multi-layered lens coating for bright images. 50-yd. parallax setting. Exit pupil: 36.7mm at 3x / 2.9mm at 7x. Focus type: eyeball. Windage/Elevation: 0.25 M.O.A adjustments. Tube diameter: 0.75in.