Color: white rhombus, black rhombus,?white square, black square
Material: optical fiber cloth

Power supply mode: USB, 3.7V 450MAH

1CM=0.393 inch

About color&size difference According to the light and different computer monitors, the color may be slightly different as pictures. Besides, please allow 1-3cm measurement differ due to manual making. Your understanding and support are highly appreciated.

Email [email protected] if you have anything you do not know about the order

Dear customer Please carefully measure your size before you buy the product.

COMMITMENT We have complete return and replacement policy, we insist that The customer's interests are most important, your satisfaction is our greatest happiness. Please feel free to buy our product.