i got these for me and my boyfriend, they’re not very adjustable on it’s own but it does end up adjusting. they’re very strong and don’t lose the color and don’t turn your fingers green!update, it’s been almost a month. but the ring with the butterfly broke! i was very disappointed. i don’t have the piece because it lost while i was in school ?. it is still a good ring.The rings came in and i bought them for my boyfriend and i , they were really cute and seemed to be very durable and non tarnish but less than a week later the day i surpised my bf with them, the thinner ring with the butterfly pendant broke off, very disappointing and embarrassingI purchased this product for me and my best friend. It is one of the best purchases I have ever made. It is a unique way of matching with someone that isn't your typical friendship bracelet/ necklace. He loves it, and so do I. 10/10 quality.