Chubby Notebook cookie cutter is available in 6 sizes.

Cutter dimensions*:
Petite Mini: 1.88 in. tall x 1.88 in. wide
Perfect Mini: 2 in. tall x 2 in. wide
Medium: 3 in. tall x 2.88 in. wide 
Regular: 3.25 in. tall x 3.13 in. wide
Regular: 3.5 in. tall x 3.38 in. wide
Large: 3.75 in. tall x 3.63 in. wide

*Cutter dimensions are rounded to the nearest 1/8th of an inch and may vary slightly depending on how the cutter is measured.