Because this is a handmade item, it is one-of-a-kind. I made this with the hope that it will appeal to those who don't want to be like everyone else and who want to express their individuality through accessories. While I cannot provide a definitive guarantee of its strength, I use stainless steel wire, which is not easily broken and is resistant to rust. Please handle it with care, such as avoiding contact with water. [Blue] [Brown] A cute flower-shaped toggle clasp is used for the closure. The clear butterfly changes color to brown or blue depending on the angle, which is very cute! To make the butterfly stand out, the rest of the design uses silver and clear parts. Length: Approximately 18cm Instant purchase available. Please feel free to comment if you have any questions.