Measuring Tools -- The 4-piece macrame measuring straight ruler measures 15cm/6in, 20cm/8in, 25cm/10in, and 30cm/12in. High Quality -- The measuring tools are made of high quality wood with 2mm thickness, light weight, easy to use, safe and reliable, the edges don't hurt your hands and can be used safely for a long time. How to Use -- Wrap the wire you need to use for making wall hanging around the measuring board of the length you need to get the length you want, save your measuring time. Wide Application -- The measuring tool can not only be used to get the length of Marklenko wire you need, but also a measuring tape for daily use. Tool Gift -- You can send this measuring tool to your friends or artists who like to make crafts and they will thank you for it.