Shopping for stationery means balancing budgets with basic necessities the helix protractor is the must have for mathematicians and students the oxford range is high quality and strong with a beautifully clear backing and interchangeable degree measurements on either sideaffordable high quality and precise and with a 180 degree limit stay organised and be prepared to study without struggle we might love burying you in washi tape cards and paints but we also know that without accuracy y