A Matchless Safety Flare

The Flashing Safety Puck is a gadget you may never need—but if you ever did, it could just be a lifesaver.

The Flashing Safety Puck is a gadget you may never need—but if you ever did, it could just be a lifesaver. This 4-in.-diameter polycarbonate disc contains 16 LED lights that flash in nine patterns (including the universal SOS warning). It has 360-degree visibility and is nonflammable and waterproof—it even floats. Its super-strong magnets hold tight to your car or other metal surfaces. The manufacturer claims the batteries will hold their charge for 10 years and that the unit can be seen from more than 1/2 mile away. Its most common use is as an emergency flare—keep one stashed in the trunk of your car and you’ll have a beacon that can be activated with the push of a button. They’re most popular as a roadside emergency warning light, but some people put them on slow-moving vehicles on back roads, on kayaks to alert larger boats they’re in the area, and on top of bike helmets for night riding.

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