Zysta 40 Top Quality Stainless Steel Collar Stays Bones Stiffeners For Dress Shirts, 4 Size-2.25" 2.5" 2.75" 3" 40 pieces high quality stainless steel collar stays. 4 different sizes: 2.25"(10pcs) / 2.5"(10pcs) / 2.75"(10pcs) / 3"(10pcs). They will fit all shirt and collar sizes. Material: Stainless Steel Both ends are nicely rounded so as to avoid puncturing the pointed end of your shirt. Comes in a plastic box