【PROTECTS CELLO WOOD & TONE】 — Maintains 45%-55% humidity to prevent cracks, warping, and glue damage; ensures long-term structural stability and preserves rich acoustic resonance.
【LEAK-PROOF MEDICAL-GRADE DESIGN】 — BPA-free silicone shell with absorbent sponge core; zero spills even in tilted cases, safe for delicate varnish and fine wood finishes.
【PERFECT FIT FOR 4/4 & 3/4 CELLOS】 — Slim curved shape slides effortlessly into F-holes or case compartments; discreet and travel-ready for musicians on tour.
【EASY 10-SECOND REFILL SYSTEM】 — Transparent window shows water levels (lasts 7-10 days per fill); uninterrupted humidity control.
【PROFESSIONAL HUMIDITY MANAGEMENT】 — Pair with hygrometers for real-time monitoring; ideal for dry climates, air travel, and vintage instrument storage.