Ear cuffs made with metal beads. Wire is 304 stainless steel. Great value with a set of 2. Uses 5cm wire (9-pin), with a diameter of approximately 2cm (*^▽^*). The wire is stiff enough to be adjusted with your fingers, so please try adjusting it♪ They are praised for their comfortable fit, and many customers are repeat buyers. Also, as these are handmade products, there may be some imperfections... Please understand this beforehand m(._.)m