Material: silicone and stainless steel. Easy to wear. All models can be attached to your bag / uniform with a closable brooch. For daily waterproof use only, can not be soaked in water. Removable case so you can switch colors Ideal for hospitals, clinics, doctor's offices, medical professionals, nurses, veterinarians, beauticians. Watch Face: Arabic numerals with a face make it easy to read the time on this silicone pocket watch. Simple Brooch Design: Unique pin-on-on design, easy to pin on the uniform and keep the watch clean while you work, especially suitable for nurses, doctors and other medical professionals. Healthy Material: Medical silicone cover + alloy case, no harm to your clothes and skin. High-precision quality quartz movement Description: Main material: silicone. Note: 1. The dimensions were determined manually and can therefore vary by 1-3 cm. Please only purchase if this is not a problem. 2. Due to different monitor settings, the color of the product may differ slightly from the color shown. Thank you! Scope of delivery: 4 x silicone pocket watch.