Description: Heating Hair Caps: PU fabric with premium inner cotton and waterproof plastic, effectively retain moisture; Uniform and exquisite double-layer circular wire, fast heating. Function: Doing hair film care under normal temperature with our heating caps, effectively absorb the nutrition components of hair film, shorten the hair dyeing time, color will be firm and uniform, repair the damaged hair after perm. Features: One button control design, user friendly and convenient; fast temperature , intelligent temperature control, waterproof liner, bright hat color. Suitable for both home salon, professional and travel use. Three-level Intelligent Temperature Control: The temperature is freely selected, adjustable from 20-69 Celsius, up to 69 Celsius. When heated, it does not produce a plastic or paste taste. Adjustable Size: Detachable and smooth zipper design allows for cleaning convenience,pull rope can freely adjust the caps size, suitable for more people to use. Power cord about 2 meters long, easy to use. Specification: Material: PU+Cotton+Plastic Size: Approx. 23x17cm/10.63x6.69inch Size Chart: 27x17cm/10.63x6.69inch Package Includes: 1 Piece Hair Heating Caps 1 Piece Power Adapter (US Interface)(4 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!