This retractable tape measure has a 3-meter length and features a flexible, tempered carbon-steel blade covered with a special rust-proof enamel. The 13 mm wide blade has a curved profile for rigidity when extended. A locking control holds the blade at the desired length. The retractable design allows the tape to be compactly stored when not in use. This tape measure is suitable for general-purpose linear measurement in laboratory and workshop settings.