Latin Percussion Bongo head Aspire EZ Curve Rims - 6 3/4" Macho (LPA663A)LP Aspire heads in entry level quality Thickness: approx. 1 mm Head height (when new): approx. 30 mm Material: untanned buffalo hide Rim: All Highline Aspire EZ Curve Bongo hoops in respective size. Also fits CP601 Combo Bongos Tip: Please only use the Original Aspire heads. The outer diameter of the hand picked and Matador models is slightly bigger so that the head will get jammed in the EZ rims. Remo original heads have a slightly slimmer aluminum