300 Plastic Collar Stays for Men - Collar Stays for Men's Dress Shirts, 3 Sizes, Shirt Collar Inserts 300 Men's Collar Fixes - Keep collars crisp and shirts looking sharp all day long. Highly Durable Plastic - These shirt collar stays are built to last. Our shirt collar inserts are 3 times thicker than standard plastic collar stays. Actual product appearance may vary from images depicted. Large Quantity - With 300 collar stays included, there's no need to worry about lost or misplaced collar stays. This set is long-lasting and can be used as disposable collar supports. Smooth Edges - Designed with smooth edges to protect your shirt collars from damage. Collar stay inserts in 3 sizes: 50.8x10x0.8mm, 55.8x10x0.8mm, 60.2x10x0.8mm, 100 pieces each. Note: All measurements are manually taken. Please allow 1-3 cm variation due to differences in lighting and display. Color may vary slightly depending on the actual product received.