Using guidance from the Blue Ocean sustainability series, KUM has developed a collection of stationery made from bioplastics, as part of their efforts to produce sustainable products without sacrificing quality.

Bioplastics - also known as bio-based plastics or biopolymers - are produced from renewable biomass sources such as vegetable fats and oils, sawdust and agricultural by-products, to name but a few.

The range includes this simple 15cm set square with measurements marked out in black and branded with the KUM and Blue Ocean logos.