This scope is specially designed to absorb the reverse kick generated by spring-powered air guns and features a bright coated optic lens with parallax adjustments.Focus RingEye PiecePower RingElevation And Windage AdjustmentParallax Adjustment RingLength 350 mmObjective 40 mmTube Ø 25,4 mm / 1"Weight 515 g Mounts not included.