"Here's a kit that provides a fun use for your laser pointer. Aim your pointer at the small ""CDS Bull's-eye"" and if you strike it you will see a bright red star (made from 8 LEDs). The kit features a red LED aiming spot that can be switched on at night for target practice. The target can also be used inside during daylight hours as it has a control to adjust for ambient room light. The range of use is only limited by the range of your laser pointer. Create contests and sharpen your skills with this fun kit. Operates from 9V battery (not included). Size of board: 2 1/2"" x 2"". Complete with all parts, PC board and instructions. Skill Level 1. "