These cute music note buttons make a great gift for piano or guitar students & music teacher alike. For other music lover buttons in my shop click here https://www.etsy.com/shop/cutebutton?ref=seller-platform-mcnav&search_query=music These buttons come in 4 sizes with various back types 1 inch - pin, flat back, hollow back, fridge magnet 1.25 inch - pin, flat back, hollow back, fridge magnet 1.5 inch - pin, flat back 2.25 inch pin Description of back type pin - meant for wearing flat- metal back that is completely flat with no pin, meant for crafts, bows, badge reels etc. hollow - slightly indented back with no pin good for crafts, magnets etc Fridge magnet - for decorative use (not for wearing) These buttons are all high quality & handpressed by me. I usually ship with in 48 hours, often sooner. For larger orders please ask for processing times because they will be slightly longer. Music Note Buttons | Set Of 20 Piano Or Guitar Student Prize Gift Idea Choose From 1, 1.25.1.5 2.25