Comfortable Electric Heated Thermal Insoles

Feature: 

High conversion efficiency, energy saving, half an hour of current. 
It's easy to cut to the size you need. 
Suitable for all types of shoes. 
Make your feet comfortable and warm. 
The design is readable, comfortable and clean. 
USB charger, connect to computer, notebook, charger, keep your feet hot inside.

Specification: 
Size: 35-40, 41-46
Color: Black
Material: Carbon Fiber
Function: Keeping Foot Warm
Maximum Voltage: 6v
Heating Range: Full Palm Heating
Package Includes: 2 Electric Heating Insoles, 1 USB Cable
Specifications: USB, US, EU

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.