The D'Luca Grand Piano Accordion D3472 features 34 Piano Keys with 72 Bass Buttons and 5 tone switches. The D’Luca D3472 offers six rows of bass buttons for the player who prefers a wider bass range with 5 tone switches for extra versatility. This incredible accordion will allow you to play a great variety of music styles and a wide range of music genres! The D'Luca Grand D3472 is a beautiful instrument finished in pearlescent colors with elegant Italian style rhinestone pattern decoration. Italian Tuning with 3 Sets of Treble Reeds. The bellows are 18-fold in size for bigger sound offering easy control and pressure with steel corners for added protection and longer life. Beautiful custom Grill acoustically designed to provide a bigger sound than most other comparable accordions, the pearl buttons and a custom grill design offer a beautiful touch. A slide lever air valve makes for faster air intake. There are single straps hooks on each side of the accordion with plenty of room for the two PU leather padded shoulder straps included, adjustable left hand bass strap, and two bellow straps to keep the accordion secure while not playing. Each D'Luca Grand Accordion includes a premium hard case plush lined and adjustable PU Leather shoulder accordion straps. Accordion Dimensions: 17 Inches Length, 16 Inches Height and 7.50 Inches Width. Accordion Weight: 17.50 lbs. approximately.