Thank you for viewing! This is a set of 12 kids' rings. It's a very cute set with butterflies, ribbons, flowers, and more. The heart-shaped case is also adorable. With 12 rings, you can change them up depending on your mood. The long diameter of the rings is 1.4cm to 1.6cm. There are slight size differences. Please understand this before purchasing. Shipping will be in simple packaging. Also, due to the thickness, the rings will be taken out of the heart-shaped case and wrapped in cushioning material for packaging. Please refrain from purchasing if you are looking for perfection or are overly sensitive.