HaberDashe Polo Shirt Collar Stays - 20 Pair Dispensing Case & 4 Stainless Steel Metal Collar Stays (2.5" & 2.75"). Great Father's Day Gift! BUY ONE GET ONE FREE! - Read promotion details below. HaberDashe Polo Shirt Curl Collar Stays are offered 3 Packaging Configurations Available in 20 Pair Dispensing Case, 40 Pair Dispensing Case or 20 Pair Dispensing Case with (4) Pair Stainless Steel Collar Stays Browse through the options to see the different pictures from each configuration.