Can be used in normal shirt between the collar,unique but classic design,suitable for all of shirts. This is a great gift set giving to your grandpa, father, son, boyfriend or , to express your friendship with family and . The collar clips is made of high quality metal, durable and nice, surface plating polishing. Great decorations for your suit/shirt collar and make you look and feel confident. Fits for many occassions like meeting, party,wedding,dating etc.