Our Invisible Strings Bestie Special- Includes two matching Simple Stacking Rings at a 10% discount and two Travel Cases.. Zayla’s Invisible Strings Set is inspired by the unseen forces that bring us together and keep us close, no matter how far we roam. This Bestie Special features two matching 14k gold rings, designed to symbolize the invisible string that connects your heart to theirs.. Durable, waterproof, and effortlessly chic, these rings are more than just jewelry—they’re a reminder of the love and connection that tie you to your best friend, sister, or mom. Whether near or far, the Invisible Strings Set is the perfect way to celebrate a bond that’s as strong as it is unseen.