It would only allow you to use a certain length?

We will have to use a length of my hair.

To make sure she was really dead he used a length of clothesline.

Johnny used a length of piano wire for the job.

The prototype unit used a length of 5m but you may find that a greater range can be achieved.

If not, use lengths of treated timber laid on edge instead.

Now he began the most enjoyable work, using other lengths of silk cord.

If an offset is required, use two 112 bends and a short length of pipe.

She fluffed out her hair and used a length of cloth to make a bow.

Each check is mounted on the rail using a short length of brass wire.