Marking tape / Marking tape

Our two hands are full in measuring. Sometimes with the help of a measuring tape. It’s not handy when we are to make a mark. So we now have make a small change in the design by fitting a device to make a mark below the measuring tape by pressing downward a little.
After using a previous tape to measure an object.one need to make it with a pen .which not only reaults in inconvenience but also errors in measurements accuracy.
While using an improved tape.one can note down the measurement by sliding the lead stick in the bottom of it from left to right after lifting up the tape lightly.