This tape measure is perfect for any DIY project. It features a durable, high-quality steel construction and a comfortable, ergonomic design. The tape measure is marked in both metric and imperial units, making it ideal for a variety of projects. The tape measure also features a locking mechanism
From Wikipedia
A tape measure or measuring tape is a long, flexible ruler used to measure length or distance. It usually consists of a ribbon of cloth, plastic, fibreglass, or metal strip with linear measurement markings.