Helix Oxford Camo 30cm Folding Ruler in Green! Ideal for use in the home, office or school, perfect to add to your Helix camo collection. Features: • Innovative snap fit folding hinge • Folds to fit into a standard size pencil case, ideal for easy storage • CM and MM metric graduations Product Information: • Helix Oxford • Folding Ruler • Colours: Green camo • Measures: 30cm