Thank you for looking. This is a genuine Sony "PS4 DUALSHOCK 4 Back Button Attachment". With this one item, controller operability will be significantly improved. [Product Details] - Manufacturer: Sony Interactive Entertainment (Genuine domestic product) - Compatible models: DUALSHOCK 4 (PS4 controller) - Accessories: Main unit, instruction manual, outer box - You can assign two buttons to the back. Settings are easy with the organic EL display. [Product Condition] - Operation confirmed. Both buttons and LCD display are in good condition. - There are minor scuffs from use, but no noticeable large scratches or stickiness. - It has been disinfected and cleaned, so you can use it immediately. [Shipping and Packaging] - We will ship via "Takkyubin Compact (anonymous shipping, in-person receipt)" for peace of mind. - To reduce shipping costs and reflect them in the selling price, packaging will be simple, tailored to the thickness within the dedicated box. - The product will be shipped in a dedicated box with waterproofing measures. - Due to thickness restrictions, bubble wrap (cushioning material) may be minimal or absent. Please understand this in advance. [Notes] - Please only consider this if you understand that it is a used item. Immediate purchase is OK. Thank you.