36 circles with varying diameters This circle template provides 36 circles of different diameters in one tool, offering multiple size options to meet diverse measurement and layout needs. Durable K resin construction Made from K resin material, the ruler delivers enhanced durability and resistance to breakage compared with ordinary plastic rulers. Clear and transparent scale The scale is clear and the template is transparent, helping to improve measurement accuracy. Arc angle design The circular template features an arc angle design with no sharp corners, allowing safe and comfortable handling. Use scenarios Technical drawing and drafting: use to mark and measure circles accurately in architectural or engineering layouts. Pattern making, sewing, and crafts: transfer circular patterns onto fabric or paper with precision. General layout and marking on materials: apply to woodworking, metalworking, or other craft projects where circular guides or arcs are needed.