SAVE MONEY: This elastic is extra strong so it is both durable and stretches only when needed to still maintain its integrity. Works great for maternity when your waistline changes as you advance through pregnancy. Keep using your favorite pants or skirts even if they are a bit too snug in the waist! Magical DIY: 1 If the waist is too tight, cut into appropriate segments, and make a waist extension elastic band; 2 If it is too loose or replace the old elastic band, Solved all your "skinny tall kid" problems with this! Instructions: Just sew a button on each side of the pants, cut a hole in the waist band and side the buttonhole piece through and pull and button to fit. (Be sure that you make a hole in the waist band only on the inside band and do not cut the hole through the outside band.) Questions you care about: 1 button size: button holes are very flexible, according to the size of the buttonhole extension, Half inch button to 3/4 inch button works. It 's elastic and the hole will stretch to fit the button. We offer 2 sizes for a total of 15 Buttons are available for you to choose from. 2Economic and practical: Can this be used to replace broken elastic in inner adjustable waist tabs in kids' pants, a tutu, t skirts, kidss pants, pajamas, jeans, etc. 3 soft and flexible: with button holes, this flat elastic rope with button holes, easy to help you adjust the length according to your preference, especially suitable for pregnant women's clothing. product features: Wide: 3/4 inch 5 meter in Length Flat buttonhole elastic Color:black&white 85% polyester, 15% rubber Products include: Black elastic band *5 meter White elastic band * 5 meter Black button *5, White button *5.