SOLD BY: EachTachikara's innovative Sensi-Tec composite leather cover is the next best thing for your leather game ball and the answer to your strained budget due to its durable and leather-like nature. This high performance model is approved for High School Competition by the National Federation of State High School Associations. Loose Bladder Construction. Butyl : 8 inch X Length: 5 inch X Length: 8 inch X