Field Notes Sweet Tooth Special Edition Blank Perforated Memo Books, 3-Pack (3.5x5.5-Inch) Spring 2016 Perforated Blank Paper 48-page Memo Book 3 Books, Banded Made in the USA Memo book dimensions are 3-1/2"  5-1/2" (8.9cm  13.9cm) Corners precisely rounded to a 3/8" (9.5mm) radius