Stretto Cello Humidifier Copy AI D-string: Aluminum Alloy Wound over

D-string: Aluminum Alloy Wound over Synthetic Core

and it has undergone extensive testing to ensure its effectiveness

A ready-made toolbox of string options avoiding the expense and frustration of unreliable trial and error

Full size only - fits up to 17" lower bout

Lower bout: 18

Stretto Cello Humidifier Copy AI D-string: Aluminum Alloy Wound overThe Stretto cello humidifier is user friendly and efficient. Its re usable humidifier bag releases moisture slowly inside the box. No screws or brackets are required, as it attaches directly to the interior case velvet using 3M adhesive velcro tape. This humidifier comes with two humidifier bags for convenience. Replace Stretto bags once they no longer absorb water.