Flat skin size is determined by the size of the shell. A properly sized skin is large enough to make mounting easy.
We recommend the following sizes:
Bongo Macho: 14″
Bongo Hembra: 16″
Requinto: 18″
Quinto: 20″
Conga: 20″
Tumba: 20″
Super Tumba: 22″
Djembe: 24″