Most buttons are one inch in diameter and weigh .10 ounces each. Buttons are round, not square like most of the pictures make them look, and the little numbers next to the image do not appear on the finished product. A few of the more expensive buttons you can assume are 2 inches in diameter. If you have any questions, feel free to ask.Our shipping prices are automated so these light weight items tend to screw them up. Please go ahead and place your order and we will have to refund you a bit for the shipping costs, or toss in a few freebies, or something. Thanks!