At PassionGlass, we offer a wide selection of styles and sizes and selecting the proper size will make your PassionGlass toy something you will enjoy for a lifetime. Below, there are sizing guidelines and metric conversions for our international customers. All dimensions on our website are measured by the length and diameter (the width accross or thickness) of the piece. If you would like to know the circumference, the distance around the glass, you can multiply the diameter by 3.15 to get an approximate measurement. For sizes larger than 2.5"(64mm), we recommend going with the smaller size if you are a beginner to glass.
Please note, there will always be some variation in the size of your toy. All sizes are within 1/16"(1.5mm) of stated diameter. This is simply inherent in the artistic creative process. We believe it makes your toy completely unique and one of a kind in the world.