100Pcs 5 Styles:You will receive a total of 100 collar clips.There are 5 sizes among them.4 are all arrow shaped collar clips, and 1 is a triangular collar clip. These collar stabilizers will make your clothes neater. Smooth Edge Design:The edges of these shirt collars are very smooth and can be placed flat on the collar, providing support and making the clothes look better. PET Plastic Material:These collar stays for men are made of PET plastic material, which is not easily deformed and can be stored for a long time. They are lightweight and easy to carry. How to Use:After washing clothes, when it's cool, flatten the shirt, especially the collar area, and be sure to keep it flat. After the shirt is dried and ironed, put the insert back to ensure that the collar is straight and not deformed. Thoughtful Gifts:You can give these shirt collar braces as birthday or holiday gifts to your husband, father, and male friends, who will need this gift when wearing shirts or formal clothes.