Work Box Friend is laser cut and engraved from Perspex, it can be wiped clean and PVA (white tacky) glue will not stick to it. This wonderful addition to your workbox is so useful you will wonder how you ever managed without it. Neat and compact yet it has a glueing jig, a rectangle ruler with double sides, a right angle for marking and cutting, 12th, 24th, 48th and 144th scale rulers plus a scale table for common measurements and conversions. - thw work box friend has full included instructions and measures 5.5 inches by 4 inches - a very useful tool for all your projects

we also have a metric work box friend  - which is the same size