Remo 9 Inch Doumbek Head SKYNDEEP Fish Skin GFX. Replacement head for 9 inch Remo Crystal and Soloist doumbeks. Remo's SKYNDEEP Fish graphic image synthetic drumhead which produces a full bass and Tek tone remarkably authentic in sound and feel. Remo WEATHERKING world percussion drum heads rely on the same open channel system that has established the drum set heads as the benchmark since 1957. Skyndeep is the graphic infusion of pigment into a polyester surface making it uniquely attractive while maintaining the integrity of a great sound drumhead.