The white felt part of the brush lets you smoothly apply F4 products to the base of your skis

and diamonds 4 inches or longer

North American Plug

Lightweight Springs

Therm-ic Single C-Pack 1300 Bluetooth Battery THERM-IC The white felt part ofThe C Pack 1300 Bluetooth battery is used in conjunction with Therm ic's C Pack heating elements to give you toasty warm feet while up skiing, snowboarding, or other outdoor winter activities. The C Pack 1300 batteries offer warmth for up to 13 hours. They feature a single control button which allows you to toggle the heat intensity at the push of a button. This particular battery is suitable for use with Therm ic Insoles Heat Flat, Heat 3D and C Pack