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Verified Purchaser zZounds has verified that this reviewer purchased this specific product from us.

I bought this for my classical guitar. It goes between the strings and sits in the sound hole. The It has a hygrometer and thermometer built in. It's super easy to use. It has the optimal humidity and temperature range printed onto the humitar, so it's easy to know when to keep the sponge in the humitar and to keep it in a temperature controlled room. It's a bargain at $30. Keeps my classical guitar in top shape.