Material: High Quality BrassLaser Wavelength: 625-660nmLED Type: Visible Red LaserLaser Beam: <5 mwSighting Range: 20-30yardsDot Size: 1.5" @ 100 ydsIncluded Batteries: 4 x AG3 Button Cell Included in the Package: > 1 x Laser Bore Sighter> 4 x AG3 Batteries