This is a custom 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 as shown in the photo may be deteriorated or hardened. While some online sources suggest soaking 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 custom 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 for a long time with no maintenance required (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 directly replaced (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. Although not confirmed for other models, it is believed to be compatible with equipment that uses parts of the same shape. Everything shown in the photo is included (the equipment itself is not included). The price includes shipping for one piece. It will be shipped via Nekopos (a Japanese delivery service). Accessories/Parts...Maintenance Supplies Type...Electronic Drums