Features: The shells is make of ABS material, which is anti drop and wear-resistant. The scale is clear, and the temperature and humidity of the guitar are accurately known through the redness lines. Small and slim, it doesn't take up space, so there's no need to worry about taking up space. Humidity Temperature Meter is suitable for guitars, but also for violins and other string instruments. The guitar shape is innovative, adding a stylish touch to your guitar accessories. Specifications: Material: ABS Size: As shown in the picture Package Includes: 1pc Guitar Thermometer Hygrometer note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.