The Hook Clasp is one of the quickest and easiest fasteners available. Composed of non-ferrous (mixture of non-magnetic) metals, this closure measures 1.25 inches (31.75 mm) each piece end-to-end. This fastener may require the use of an instant-bond glue, so we recommend assembly to be preformed by an adult only. One strand of Bunjee brand bungee craft cord (or any cord 3mm-4mm in thickness) can squeeze into the base. Illustrated assembly instructions are included under the header card.