Bound by Diamonds An exquisite collection of seductive fetish gear hand-crafted in soft supple patent leather, then adorned with lustrous white crystals. One size fits most. If you lead, he will follow! Seductive, adjustable 2-snap collar with detachable leash and universal clasp Exquisite diamond detail60% PVC, 30% Polyester, 10% PU (leash and collar) Polyester (ribbon) Alloy (clasp)16âx 1.25â/ 41 cm x 3 cm (collar)21.5â/ 55 cm (leash).