Yamaha YDP-105 88-Key Digital Piano with Stand, Pedal & Bench - BlackStandard size, 88 key model of the ARIUS digital piano featuring weighted keyboard. The GHS keyboard provides a richly expressive playing feel. Includes compatibility with Yamahas Smart Pianist app. YDP 105 Size Weight Dimensions Width 53 7 16" [1,357 mm] Height 32 1 16" [815 mm] (With music rest raised: 38 1 8" [969 mm]) Depth 16 5 8" [422 mm] Weight Weight 82 lbs. (37. 5 kg, 11 oz) Packing Box Width 56 17 64" [1,429 mm] Height 17 3 32" [434 mm]