Gauze bandage coated with Plaster of Paris. The bandage is wrapped around a plastic spool designed to wet quickly and evenly when immersed. Once the bandage gets wet, it forms a hard and hard structure that is both porous and absorbent.
A basic digital thermometer typically has a simple design and is easy to use. It usually features a digital display that shows the temperature in Fahrenheit or Celsius, with clear and easy-to-read numbers. A basic digital thermometer may also have a beeping sound or other audible alerts to indicate when the temperature reading is complete.