- Design and safety: The circular stencil set features radian-rounded corners to reduce the risk of hand injuries. Each stencil includes multiple patterns and scales, and the practical plastic ruler provided is useful for both drawing and measuring. - High quality materials: Made from sturdy plastic with clear scales. The components are yellow and transparent for easy visibility and accuracy. Black scales are included for easy reading. Available in many sizes to suit different drawing needs. - Versatile applications: Suitable for art and design work in schools and offices, mechanical engineering, architecture, network technology, and general drawing stencils. This geometric set is a reliable learning tool for various crafts and technical drawing tasks and makes a thoughtful gift for architects, students, teachers, designers, or craftsmen. - Circle template details: The stencil is designed to work with ink fountain pens up to 0.5 m and fine lead pencils up to 0.5 mm, as well as standard lead pencils. It includes ink nubs to prevent ink smudging during use.