Cloth covered hard sides, latches, and felt interior protect the Heather Harp during storage and travel. Inside dimensions: Harp base area: height 9.5" x width 8.75"; Harp arm area: 21.75"latch to hinge x 4.75" side to side; Harp back area ( hinge side) length 35"; Harp arm area (latch side) length 37.5".