A key to bike safety and coexistence with cars and pedestrians is visibility. Nonetheless, visibility is harder in an urban environment where there are lots of things competing for the driver's attention. This is made even harder when people are riding at dawn and dusk! Therefore any additional lighting will provide incremental safety benefits. Zackees gloves are simply turn signal gloves that illuminate when you hold out your hand; please note that rather than signaling both turns with your left arm, this technology requires you to use both arms! Revolutionary! The Founder was a Google engineer who became obsessed with electronic apparel after Burning Man ... while I am sure he wasn't alone, he is one who thought to commercialize his interest. Either way, he has created a very cool product that will enhance cycling safety. As an aside, you might want to use these to hail cabs!