External dimensions of the artwork : 17.5 × 29 × 0.8 cm | 6 7/8 × 11 7/16 × 0 5/16 inches
Dimensions of the mechanism : 15 × 42.7 × 26 cm | 5 7/8 × 16 13/16 × 10 1/4 inches
Plasterboard dimensions : 36 × 63 × 6 cm | 14 3/16 × 24 13/16 × 2 3/8 inches