The rings are of different designs, and different sizes. One of the multi-layer rings, with the butterfly decoration on it, comes with the adjustment feature. While the other three rings are offered with different art styles. One is plain and delicate. Likewise, the other three can be easily used as half-rings with the size differentiation. The Colourful Aura Unisex 4 Piece Silver Bohemian Butterfly Tribal midi Stackable rings Ring