Key Features of Maped Twist and Flex Transparent Rubber Rulers Phthalate Free Flex Flat Ruler,Maped Twist and Flex Transparent Rubber Rulers (Set of 1, Blue) Price: Rs. 49 Maped's twist'n flex 30 cm ruler - Blue withstands twists and bents that are common in everyday use. The 30cm phthalate free ruler is unbreakable and features bigger markings for easy reading.,Specifications of Maped Twist and Flex Transparent Rubber Rulers (Set of 1, Blue) General Series Twist and Flex Model Name Twist And Flex Flat Ruler 30 cm / 12 inch Ruler Features Ruler Material Rubber Transparent / Opaque Transparent Ruler Measurement 30 cm In the Box 1 Ruler