Ultraflex SAFE-T(R) Ruler

My kid's been using it for school projects and it's survived being tossed in a backpack and dropped on the floor countless times. The plastic really does hold up, and being able to measure around a curved edge is a trick a flat ruler just can't do.

The twist-and-roll action makes it so easy to measure around a jar for a label, and I love that it won't shatter if my kid drops it on the tile floor. Even the curved lines on a globe came out accurate, which surprised me for a classroom ruler.

I’ve used this for craft projects where I need to measure around bottles and jars, and the twist-and-roll action makes it genuinely accurate on curves. The flexible plastic feels sturdy enough for my kids to handle without me worrying about it snapping.