This blue Silicone flexible Pinch Bowl measures 3" in diameter, and holds 30 grams of coffee beans to the top. Very handy for weighing the beans, and for pouring them into many different manual & single dosing electric grinders. We know you can get these on Amazon, ranging in sets of 6 to 30, but you might not need, or want six, and you might prefer not to buy on Amazon, so here, you can buy them one at a time! It's a very handy little item, and can double as a small blower dome for some electric grinder to help clear the grinder chute. We use ours for dosing, and pouring! Scale, coffee beans & grinder not included!