Helix Shatter Resistant Ringbinder Ruler 12 inch / 30cm, Assorted Colors (61014) Transparent plastic for easy measuring Graduated in both imperial and metric Customer will receive one in any of the following colors: Blue, Green, Pink, Gray and Aqua. Color is random and cannot be chosen at this time. Transparent plastic for easy measuring ^Graduated in both imperial and metric ^Customer will receive one in any of the following colors: Blue, Green, Pink, Gray and Aqua. Color is random and cannot be chosen at this time.