The Iris is your perfect tool for drawing and measuring circles. Simply rotate the rings to open and close its captivating aperture mechanism. Featuring added grip and honed tolerances for ease of use. One of the most beautiful mechanisms to have stood the test of time is here, in the palm of your hand. The Iris can be used to enjoyably draw and measure single, concentric, or even shaded circles with its unique moving aperture.The Iris is engraved with a metric scale for measuring the diameter of circles. It will measure any circle between 3-70mm in diameter. Made with the utmost care and consideration, featuring a solid brass body and carefully selected corrosion-resistant stainless spring steel leaves. Packed in 100% recyclable card packaging, beautifully illustrated instructions are included. The Iris has been designed to last a lifetime, and as such may patina with time and use. A light polish with brasso, or with a Brass cleaning cloth, will bring back its original shine. The leaves are stainless steel, and are resistant to corrosion
