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 homemade repair part created with a high-precision 3D printer. It uses a soft material (TPU) also used in smartphone soft cases. Simply replacing the deteriorated part will allow you to 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 is made with a high-precision 3D printer, it can be replaced directly (due to the manufacturing process, some sides may be slightly rough, 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 others, it is believed to be installable on devices that use parts of the same shape. Everything in the photo is included (the device itself is not included). The price includes shipping for one piece. Shipping will be via regular mail. If you are in a hurry, you can change to Mercari Mail (Nekopos) for an additional 100 yen, so please comment. Type...Electronic Drum Accessories/Parts...Maintenance Supplies