Our Handcrafted silicone beaded pet collars are all made to order. Our Collars are strong and very durable, able to handle up to 265lbs of pulling strength. * 16mm Acrylic Beads Lead, phthalate, and cadmium free. * Stainless steel swivel lock and "O" ring on collars * Collars made with vinyl-coated aircraft wire (265 lbs pull strength) * 100% non-toxic, waterproof, and odor-resistant