12-Pack UNSTRANGLER Collar Extender/Expander Buttons. Add 1/2 Inch (1.5 cm) Extra Comfort To All Shirt Collars When Wearing A Tie. A True Wonder. Add (1.5 cm) " Extra Comfort To All Shirt Collars When Wearing a Tie. UNSTRANGLERS PERFORM BETTER THAN ALL OTHER COLLAR EXTENDERS. 12-Pk (4 clear+4 white+4 black studs) Works in a Completely Different Way To Elastic Buttons. Worn Between Your Shirt and Your Tie - They Won't Chafe or Irritate Your Sensitive Neck. For a Genuine Stiff Extension of Your Collar-band. Tighten Your Tie Without Squeezing Your Neck. Don't Dump Your Overtight Shirts. Reprieve Them With This Invisible, Shaped & Discrete Unstrangler Wonder Button Hole Extender.