BOTAO STRONG AND DURABLE: All 6 collar stays are made of stainless steel. They are magnetic, do not bend or break easily, are very strong, durable, and can be reused for a long time. SMOOTH EDGE: These are sturdy metal collar holders that do not bend, keeping your collar stiff and your shirt looking sharp and clean all day. The collar holders also have smooth edges that will not grind holes in your collar. 3 SIZES AVAILABLE: The metal collar holder is available in 3 length sizes to suit different needs - you can use the right one to fit different shirts. 6 magnets can hold the metal collar firmly. PERFECT GIFT: The shirt collar is a must-have in everyday life. The luxurious gift box makes it the perfect gift for fathers, husbands, and boyfriends on birthdays, Thanksgiving, Father's Day, Valentine's Day, Christmas, and more. Rust-resistant heavy collar protector will not rust, which means no stains will be left on the shirt. It is completely safe to use on white shirts. Quantity delivered: 1 set (3 pairs) Dimensions: 56x10x0.8mm/63x10x0.8mm/70x10x0.8mm Color: silver Friendly tips: 1. Package contents: only the above package contents, excluding other products. 2. The size is manual measurement, please allow 1-2 cm measurement error. 3. Due to different displays and lighting effects, the actual color of the item may be slightly different from the color shown in the picture.