This is a homemade repair part for the hi-hat pedal of the Roland TD series electronic drum sets. If the pedal doesn't respond when stepped on, or only responds when stepped on hard, the internal rubber part shaped like the one in the photo may be deteriorated or hardened. While there are methods circulating online to soak the rubber part in hot water, it will harden again after a while. Depending on the degree of deterioration, it may even melt in hot water (mine melted, lol). This product is a self-made repair part created with a high-precision 3D printer. It uses a soft material (TPU) also used in smartphone soft cases. Simply replace the deteriorated part, and you can maintain functionality maintenance-free for a long time (I've been using it on my own equipment for several years without any problems). Since it's made with a high-precision 3D printer, it can be replaced directly (some sides may be slightly rough due to the printing process, but this does not affect the operation at all). Replacement is not difficult (you can find the procedure by searching online). Replacement may be more difficult for HD series than FD series, but it is possible. Discounts are not available. This is not a genuine product, so please use it at your own risk and within the scope of personal use. If you expect the same operational guarantee, please purchase the genuine product. Please be responsible for any damage caused by replacement, and the replacement work is at your own risk. Operation has been confirmed on FD series 6, 7, 8, HD series 1 (kick & hi-hat), and TD series 1. Other models are unconfirmed, but it is believed to be installable on devices that use parts of the same shape. Everything in the photos is included (the equipment itself is not included). The price includes shipping per piece. It will be shipped via Nekopos (a Japanese delivery service). Accessories/Parts...Maintenance Supplies Type...Electronic Drums