Timpani mallets, approximately 40cm in length, KATO brand 10M-Brahms model. - Brand: KATO - Model Name: 10M-Brahms - Length: Approximately 40cm Thank you for viewing. Original price: 22,000 yen. Used condition, as is. ◆About KATO B.K. (Kato Bachi Kobo / Kato Mallets) All-handmade timpani mallets by Akihiro Kato, former principal timpanist of the Tokyo Philharmonic Orchestra. Using a unique core material, the mallets produce less sound cracking and allow for a richer, deeper resonance. Their high quality is highly regarded both in Japan and in Europe, and they are extremely popular.