The Stretto effectively humidifies for up to two weeks. When ready to rehydrate the bag, simply resoak in water (distilled for best results).
The moisturing element is a micro-fiber bag containing tiny, incredibly moisture abosrbent crystals that last up to two weeks at a time and can be reused for months. The moistened bag is placed in a customized container that attaches with velcro to the inside of your case or can be stored in aninterior accessory pocket, humidifying your stored instrument and bow.
Dimensions: 10,5 x 8 x 2,5 cm