Top, Back, Side: Poly Carbon ABS, Gigbag - Ultra Travel Ukulele is a polycarbonate reinforced plastic soprano travel ukulele with a thin, resonant, and responsive lattice-braced soundboard and fluorocarbon strings, creating a bright and punchy sound. With a zero fret and precision engineering, the instrument features ideal action and excellent intonation for an enjoyable playing experience, and the slotted bridge makes string changes easy to accomplish.