These were given to me as a gift and I'm compelled to write a review because they're literally one of my favorite gifts of all time! I love the guitar and these coasters are such fantastic quality and so personal to me. What a cool way for me to always remember the person who gave them to me and they're just so cool for entertaining! The quality is outstanding and the etching of my surname and the guitar is flawless. They're substantial and I really like the large rubber feet on the bottom. They grip a table very well and are not going anywhere. I'm just so impressed with this product and company! Thank you Modpeach! You've got a new customer!