Overall: 2 5/8 x 3 x 4 3/8" (6.7 x 7.6 x 11.1 cm) .a (cylindrical cup): h. 2 5/8" (6.7 cm), diam. 3" (7.6 cm) .b (inset rotating hemispherical bowl): 1 1/2 x 2 3/4 x 4 3/8" (3.8 x 7 x 11.1 cm)