Most handles are made of cork. Each handle consists of a series of cork rings glued together and turned in a lathe. Handles can be purchased complete or the rod builder may purchase cork rings and build the handle.
The majority of handles are crafted from cork. Each handle is formed by gluing together a series of cork rings, which are then spun on a lathe.  Handles can be bought complete or the rod maker can buy separate cork rings and assemble them themselves.