Do you have any of these problems? 】 "I want a pass case that doesn't look bulky even if I put it in my pocket." "It's a regular bag that I use every day, so I want to use something made of good materials." "I want a regular container that can be used with peace of mind in terms of security." All of these problems can be solved with BLUE SINCERE's genuine leather butterfly regular container. Please experience the regular insertion function that is the best-selling in Japan and the regular insertion for adults using the highest quality genuine leather material. [Carefully selected genuine leather materials] We were very particular about the material. Carefully selected by craftsmen, the finest genuine shrink leather is luxuriously used. Since it is genuine leather, the longer you use it, the more it will fit in your card and hand. You will use it for a long time, and you will enjoy commuting every morning with a regular entry that changes with taste.　　 [Excellent compatibility with reel strap] It is designed to be compatible with the reel strap so that even those who "lose the regular insertion immediately" can use it with peace of mind. You can use it more comfortably by attaching the "BLUE SINCERE Genuine Leather Reel Strap" using the same material as the regular container to the D-can. If you connect the reel strap to your bag, you won't lose it or get lost in it. [Thoughtful utility] The hinges for the butterfly opening and closing are made of metal shafts instead of the leather found in general pass cases. In the case of leather hinges, the leather will inevitably wear out and deteriorate due to opening and closing, but in the case of metal shafts, there is no such worry. In addition, despite the meticulous design that has space for four cards, it does not lose its silhouette without being bulky, even if you put it in the breast pocket of the suit. And when charging, the card has a slide hole attached to the clear part so that it is easy to put in and take out. [Security is safe with anti-skimming function] The crime of "skimming," in which special machines are used to extract card information without knowledge, is increasing. In order to protect your important card information from such malicious skimming crimes, the card pocket is equipped with an anti-skimming function. Just by putting the card in the card pocket, you can protect your important card information. In an era where you can protect yourself, let's take proper measures.