Keep your hands warm in your pockets, making cold water surf or swim sessions even more comfortable. The Ocoopa UT3 Lite handwarmer consists of a set of 2 handwarmers so you have one for each pocket. The strong magnets make it easy to attach the twin hand warmers, making them compact and convenient Magnetic & PortableUT3 Lite features built-in magnets that snap two warmers together into a compact, gift-ready design for men and women. Ultra Light & SlimAt just 1.8cm thin and 40% lighter than a phone, it slips easily into pockets or even gloves. Instant Heat, Lasting WarmthHeats up in 5 seconds with three adjustable levels up to 125℉, keeping you cozy for 4–8 hours. Safe & DurableUL certified with smart temperature control, dust-resistant USB cover, ergonomic one-button operation, and silicone wrist strap. Perfect GiftIdeal for camping, hiking, skiing, golfing, or simply keeping cold hands warm — even for those with Raynaud’s.