All six pins arrived via US Post. They're decent quality and individually wrapped. One could carry a pocketful of these around and give them away - I'm tempted to get a few more orders and distribute them at political events.

The paint is a little imprecise, but I only notice this on very close examination. From more than a few inches away, they look great. Impressively, the blue portion is painted all around the 50 unpainted stars, which stand out as gold. This is preferable to white on a small piece of jewelry like this, as the reflective metal catches the light. It's a lightweight metal, and the weight is hardly noticed when worn. Although they are light, they are still sturdy. I tried to bend one with enough force to hurt my thumb, and it didn't give at all.

The pin on the back is similar to other pin backs: Two leafs that catch a notch around the pin, and the leafs release when both are squeezed. This is easy to put on, and isn't likely to come loose accidentally.