Describe:When you try to draw a circle on an uneven or rough object, it is difficult to make a clearly marked circle while keeping the compass centered.The transparent acrylic circular center compass helps to clearly understand what you are doing and draw holes to draw circles with corresponding clear index marks.Easy to use-find where you want to center the circle and use a pushpin or nail in the center hole of the viewfinder/compass to fix it in place. Select the diameter circle you want to mark, and then use a fine-pointed pencil or a scoring tool to mark your circle.-[Find Heart]: You can design and draw circles with a diameter of 2.5 to 10 inches. Align with the 0-360 degree line. It is suitable for items with irregular shapes, such as logs. This also helps to maximize production on items less than 10 inches in diameter.Acrylic material-made of transparent and fully transparent acrylic with black markings, very suitable for wood turning, art, handicrafts, school projects, roughing and finishing carpenters, or for drawing circles, wood, signs, plastics, Anywhere on metal, glass, composite materials, etc.Wide range of applications-it is perfect for many different applications in