Blue housing and fob. By purchasing this product you are helping to make a difference in the rebuilding of the lives of surviving families and affected co-workers of law enforcement officers killed in the line of duty. In addition to rebuilding lives, C.O.P.S. provides training to law enforcement agencies on survivor victimization issues and educates the public of the need to support the law enforcement profession and its survivors. Lights for a Cause – Nano Light. 1 1/2″ overall. Machined aircraft grade aluminum housing with anodized finish. White LED. 10 lumens. Rotating on/off head switch. Runtime: up to 8h. Water resistant. Uses four alkaline button cell batteries (included). Includes keyring, a non-rotating snap hook for easy one handed operation when attached to a keychain and double sided fob. Weighs: 0.36 oz. Hang packaged. $1.00 from each of the Lights for a Cause – Nano Light will go towards the specified charity.