Our Handcrafted silicone beaded pet collars are all made to order. Our Collars are strong and very durable they can handle 265 lbs of pulling strength. - BPA free 12mm or 15mm Silicone beads depending on size of collar - 304 Vinyl Coated Stainless Steel Aircraft Wire - Stainless Steel Swivel Lock and Ring - Waterproof, Easy to Clean! - 100% non-toxic Beads - Lead Free, PVC Free, Mercury Free and Phthalate Free - Made of FDA approved food-grade silicone