The spring-loaded mechanism ensures that a consistent pressure is applied during measurement. You can get accurate readings every time and track your progress confidently. This tool is designed to do one thing well. You can get accurate skinfold measurement in your own home. Compared with the exquisite fat level monitoring equipment, this cheap equipment can let you know your fat level better. It doesn't even need batteries This body fat measuring tool and body tape measure are small, light and , which can be put into your fitness bag and made of durable plastic structure. This caliper can provide you with the same accurate results as other body fat measuring equipment, without spending hundreds or more expensive. Name:sebum forceps Measuring range:0-80mm Colour:White Material:Plastic Package Contents: 1 * Sebum caliper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.