Square root of 1600, 40 years old graphing paper notebook for young boys, and girls. These 40th years old birthday graph paper is a great gift idea for math lovers, middle-aged man, woman, husband, wife, girlfriend, boyfriend, cousin, closest relatives, nearest relatives, brother, sister, friends on happy 40th years anniversary

This math square root of 1600 forty years old birthday composition graph paper notebook perfect for writing, drawing, math, graphing and science design. This perfect composition graphing notebook gifts idea for birthday, Christmas, back to school, January, celebration, bday party. Cute present for who's turning 40 years old.

Features:

• Size: 8.5 x 11 Inch
• Pages: 100 Pages
• Sheets: 50 Sheets
• Perfect Size to Carry Anywhere