10 Metal Shirt Collar Extenders Metal Finish 10 Metal Shirt Collar Extenders Feel more relaxed in an instant Quick Comfort No Sewing required. Just slip on and off Spring expands about 1/2 shirt collar size You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!