Can be attached to the helmet currently in use. Uses strong double-sided tape to prevent peeling.
Uses the elasticity of the card to store inside the case. Therefore, there is no need to open and close the lid, and there is no need to worry about the card falling off due to its structure. (Card Size: 54 x 86 x 0.8 mm (JIS X6301 (Size))
Easy to put in and take out, easy to see from outside