together: 
4.38" x 3.33" 
111.29 mm x 84.69 mm

head: 
1.77" x 1.62" x 2.23" 
45.07 mm x 41.03 mm x 56.68 mm

stone: 
2.33" x 1.35" x 0.89" 
59.08 mm x 34.39 mm x 22.60 mm

base: 
1.58" 
40.08 mm