Hornvarefabrikken Knotted Letter OpenerThis paper knife is so robust it can take on even a strong card envelope. It is equally suited to the bookbinder's art of folding or scoring paper. The smoothness of the horn lends itself to modern crafts, too, including paper sculpture. The knife measures approximately 15cm. Handcrafted in Denmark from Nigerian horn, every single object that comes out of Hornvarefabrikken's workshop is a true work of art.