New in package. From the manufacturer: This porcelain slide sounds brighter than glass and warmer than brass, featuring thick walls for superior sustain and a moisture-absorbent interior that reduces slipping. Mudslide Ceramic slides are handcrafted for perfect balance of tone, comfort and playability. The Mudslide's high-fire black porcelain body falls between metal and glass in tonal quality. The hard clear glaze creates tones reminiscent of bone, while the natural silky interior prevents slipping and adds comfort. Play one to feel and hear the difference porcelain makes. All Mudslides are individually handcrafted making each slide unique.