I liked the good clarity and simplicity of these rulers and the ability to see through them while using them. Then I went to use them to measure a project accurately and didn't notice any markings/indicators for the quarter inch increment. There is only an inch and a half inch indicator/dedicated markers. Having used quarter inch rulers my entire life, these rulers don't work for me. But - if you're only drawing lines in centimeters or aren't used to using quarter-inch markings, then you're done. Check out the photo to compare these rulers to some regular old rulers I took home.