Features:1. Our sleep holder is made of high quality alloy material, not easy to rust and break, reusable and durable.2. The unstretched diameter is about 7cm, which can be stretched, and this size is suitable for most people.3. With this cuff, the sleeves can be fixed where they are comfortable and desired, without worrying about the sleeves slipping, then we can concentrate on our work.4. 3 pairs of black, silver and gold; different colors can be matched with different daily wear.5. This sleep holder is a great gift for your family on Christmas, Thanksgiving, birthday and other festivals.Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: Alloy Size: 7cm (unstretched)