[Fabric]: Each collar is made with 100% cotton designer fabric, Offering a wide variety of styles [Spreading]: The fabric is sewn of high quality cotton. [Hardware]: The buckles are made from stainless steel. The D-rings are welded for great strength and durability. Adjustable for a perfect fit.The bowtie can be attached to any collar without any alterations to the collar itself. Bowties are not machine-washable, but can be removed from collar and rinsed with water and mild soap Unlike most bowties made for dogs, these are traditional double bowties. Each bowtie is hand- sewn and attached to collar using an elastic strap.