Product details:Metal: Sterling Silver.Construction: Substantial, solid feel.Gems: Blue Sapphires.Unique Feature: Watch the moving collar in action here.Finish: Hand-polished for an authentic look. How it wears & stands:Wearable Art & Standing Sculpture: Designed to fit over one finger or stand gracefully on flat surfaces.Choosing the finger: Designed to be worn on any finger, its intricate details are most prominently showcased on the index finger or thumb.Ambidextrous: Seamlessly transitions between your left and right hands. Sizes:If you're unsure of your size, simply select 'I DON'T KNOW' at checkout. After your purchase, we will guide you through measuring your right size. Production time:We are a slow fashion atelier that makes each piece to order. Please allow 3 to 4 weeks for the production of your piece. Timeline may vary according to the piece. Contact us, If you are in a hurry.