Pearl BOOM BOX Fiberglass Cajon: Pearl's Boom Box Cajon uses a fiberglass cajon to produce low-end frequencies that have never been heard before! With a fixed snare system and an integrated bass port for subsonic frequencies you have to hear to believe, this cajon boasts the premium construction you've come to expect from Pearl. This is the ideal addition to any drummer or percussionist's rig because it is finished in a rich Artisan Red Mahogany and Red Sparkle. The Pearl PCJ-633BB Boom Box Cajon Artisan Red Mahogany's primary attributes are as follows: Snare System: Hard Fixed Snares; Material: Fibreglass Integrated BassPort Artisan Red Mahogany finish Matte The measurements are 480 x 305 x 305 mm.