Pearl Primero Bongos are made with the same meticulous detail and workmanship as pro-level and Signature models but with smaller sizes and lighter hardware. Pearl Primero Bongos are made with the same meticulous detail and workmanship as pro-level and Signature models but with smaller sizes and lighter hardware. They're perfect for schools and percussionists who are seeking the highest quality instruments backed by Pearl's reputation for quality and dependability at affordable prices. 6” + 7” head diameter. Premium Buffalo heads.