OCOOPA Magnetic Hand Warmers Rechargeable 2 Pack, AI Electric Handwarmers, Fast Heating, 3-Settings, UL Certified, Portable Heater, Gloves Fitting, Travel Essentials, Gifts Women Men, UT3 LiteMagnetic rechargeable hand warmers. The UT3 Lite adopts four powerful magnets to attach the two twin hand warmers quickly and easily, making them compact and convenient to take on the go. Ultra light. Ultra Thin. With a thickness of 1. 85cm, UT3 Lite can easily fit into your gloves or pockets. They weigh only 65 grams each, making the pair 40% lighter than your iPhone. Instant Heat. Long lasting. Heat release in just 5 Seconds, 3 temperature settings