Head Protection Helmet
It is better not to crash at all, then to crash wearing a helmet. But if you do crash, a helmet works to absorb the force, which protects your head, which in turn protects your brain. Helmets work to prevent head injuries which becomes even more important for children whose brains are still developing.
Measuring Instrument
A tape measure or measuring tape is a flexible ruler. It consists of a ribbon of cloth, plastic, fiber glass, or metal strip with linear-measurement markings. It is a common measuring tool. Its design allows for a measure of great length to be easily carried in pocket or toolkit and permits one to measure around curves or corners.