Cloud Defensive REIN Dual Button Switch Part Black. Our latest Dual-Button REIN remote switch provides both features while being even better than ever. The Dual-Button enables users to activate their REIN weapon light in either constant-on (X) or momentary-only modes using a single switch. Each button functions identical to their respective single-button counterparts mentioned above. Specifications for Cloud Defensive REIN Dual Button Switch Part Black: Manufacturer: Cloud Defensive Color: Black Finish: Black Handle Color: Black Features of Cloud Defensive REIN Dual Button Switch Part Black: Length: 2.3" Width: 1.23"" Package Contents: Cloud Defensive REIN Dual Button Switch Part Black