Roosebeck 31 Inch Pixie Harp 19 String Walnut + Extra String Set & Tool. The Pixie Harp™ has 19 DuPont hard nylon strings that range from F below Middle C to High C, and it has 19 sharpening levers. It is approximately 30" high. It has an engraved and inlaid walnut frame with a high quality Finnish birch ply soundboard for exceptional sound and strength. It includes a tuning tool and one extra string set. The color of the wood may be a little different than the photo.