Replacement silicone rubber buttons for all buttons on the Famicom controller. Includes diagonal input improvement stickers. Compatible with the controllers of the Sharp Twin Famicom, Hudson Joycard mkII, and Hori Commander. ※ The original, square B and A buttons of the first Famicom model are not replaceable. ※ Not compatible with the New Famicom (gray Famicom). ※ Not compatible with the Nintendo Classic Mini Family Computer (mini Famicom that cannot use game cartridges). These are compatible parts, not genuine parts. These are new button rubbers for repairing Family Computer controllers. Due to slight size differences in the compatible parts, the cross key may not be easy to input diagonally. In that case, attaching the included stickers to the back of the key will improve it, so please use them as needed when replacing the cross rubber. When attaching, stick them exactly where the protruding part of the rubber touches. If it is misaligned, it will not operate correctly. A separate precision Phillips head screwdriver (No. 1) is required to replace the buttons. These are parts for self-repair. The work is not difficult, but as this is a repair of a retro game console, we do not offer any support. Please understand. Shipped via trackable anonymous delivery. ※ Please ask any questions before purchasing to prevent problems. No greeting messages are needed after purchase. I basically do not use the "message section after purchase", so please wait for the product to arrive after completing the payment process. Thank you.