This Remo 8.5" Skyndeep Bongo Head will fit on the larger drum of most manufacturer's mid-range and professional-level bongos. R-Series collars are much like the collars found on snare, bass, and tom heads, with an aluminum 'flesh hoop'. Skyndeep heads feature a graphic infusion of pigment into the polyester surface, giving the head a totally unique look without affecting the sound quality! These heads have great qualities, including weather resistance, a warm tone, and lots of projection power.