Watch Band Material: Premium Silicone. For IWC Pilot Mark 20mm Quick Release FKM Rubber Watchband Strap. Features: Washable, Odourless, Lightweight, Soft, Sturdy. Band Thickness: 2.7mm - 4mm. 20mm Curved End Silicone Watch Band Rubber Strap for Rolex Without/with Clasp.
eBay