Ocoopa | UT4 Extreme Rechargeable Hand Warmer Colour:Black The measure measures in 1cm

The measure measures in 1cm increments

A replaceable 18650 cell provides about 5

The rods are equipped with guides with ZrO2 (zirconium oxide) slim inserts

When you need to hear again

Super Versatile Action Blanks: Crafted for responsiveness and sensitivity

Ocoopa | UT4 Extreme Rechargeable Hand Warmer Colour:Black The measure measures in 1cmExperience ultimate warmth and comfort on your outdoor adventures with the Ocoopa UT4 Extreme Rechargeable Hand Warmer. Whether you're trekking through snowy mountains or fishing on a frozen lake, the UT4 Extreme will keep you warm throughout your journey. The UT4 Extreme can also be used as a power bank and can charge an iPhone to 50% in 30 minutes, and the built in torch provides up to 58 hours of long lasting illumination. Features: IP56 Waterproof