The felt on piano hammers can sometimes get very hard over time and with use which can result in a bright harsh tone. In some cases the felt is so hard that it is difficult to soften the felt with the traditional needle voicing method. This hammer softener solution can be applied to the shoulders or strike point of the hammers to soften the felt which results in a more mellow tone. It is best to apply a small amount at first to gauge the results as more can be applied if needed. 8 oz bottle with applicator top.
**Important note about this product: This product has shipping restrictions because it is classified as a flammable liquid. Because of this we recommend choosing FedEx Ground or FedEx Home Delivery for your shipping option as USPS mail options may take much longer than the normal shipping time for your package to arrive. Also, we are not allowed to ship this product outside of the USA so for international customers we can't ship this item to you.