Feature:1. Specially designed for fingertip oximeter, easy to install and remove.2. Accurate openings provide you with convenient blood oxygen detection.3. Adopts highquality silicone material, durable in use and wearresistant.4. Good flexibility, can effectively protect your oximeter from breaking it.5. Small size and light weight, suitable for travel, business trips and family use.Specification:Item Type: Oximeter CaseMaterial: SiliconeWeight: Approx. 26g / 0.9ozApplicable Oximeter Size: Approx. 5.7x3.2x3.2cm / 2.2x1.3x1.3in.Package List:2 x Oximeter CaseNote:1.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.