This is the "7 Point Star" activator for tuning forks from Biosonics, a long-established American manufacturer of tuning forks. This round rubber pad is a dedicated item used to strike tuning forks. It can be used in place of your knee, and allows you to strike the fork easily and stably, enabling the tuning fork to vibrate at its maximum frequency. 【Product Details】 ・Brand: Biosonics ・Design: 7 Point Star ・Color: Black ・Shape: Round ・Purpose: Activator for sounding tuning forks Thank you for viewing. Although this is a new item, due to the nature of overseas products, minor scratches may occur during the manufacturing and transportation process. There is no problem with the quality, so please understand this beforehand. Please check the condition in the photos. As this item is stored at home, we kindly ask for your understanding. ★ The current price has been set considering a discount. We are sorry, but please refrain from further price reductions. ⚠︎ We are not responsible for any accidents or damage during shipping.