Size info:

Specifications:

Product Name: USB insoles
Material: EVA elastic fiber
Heating Material: Far Infrared Carbon Fiber
Temperature: about 40 - 50℃
Voltage: 5V/2A
Optional dimensions: 35-40, 41-46 (free cutting)
Color: Black
Weight: 90g
Package Size: 23 x 14 x 5cm

Feature:

High conversion efficiency, energy saving, the average hour with one degree of electricity.
Easy to cut to the size you need.
Applicable to various shoe types.
Make your foot more comfortable and warm.
Removable design, convenient and clean.
USB charger,connected to PC, laptop,charger, keep your feet warm indoor.

Package list:

1 Pair x Electric Heating Insoles
1 Pcs x USB Cable