This is a set of three normal-type timpani heads for Remo (including Yamaha brand) in 26-inch and 29-inch (x2) sizes. They were previously attached to two standard Ludwig timpani. Details: For 26-inch: Remo, with insert ring For 29-inch: Remo, without insert ring For 29-inch: Yamaha (made by Remo), with insert ring I did not feel any issues with their use, but I am selling them because I replaced the head type with a new one. There are no fatal damages such as tears, so I believe they can still be used. As they are used items, it is uncertain if they will conform immediately as new ones would, but how about those who want to compare heads with and without insert rings, or different types of heads? I am also selling various other percussion instruments and related items. I welcome combined transactions, so please take a look. *Everything shown in the photos is included. *Please understand that these are used items before purchasing.