Lightweight, Plastic Compass, Assorted Colors, Black/Blue, Black/Green & Black/Red, Makes Circles & Arcs With 1 Hand, Easy To Use, A Locking Mechanism Helps Prevent Mistakes, A Dial Marked With Both Inches & Centimeters Makes Measuring Easy, & The Innovative Plastic Safety Tip Holds The Compass In Place Without Tearing Or Puncturing The Paper, Works With A Range Of Drawing Tools To Draw Circles & Arcs In A Variety Of Colors, Makes Circles Up To 12", Marked With Both Inches & Centimeters, Works With Pencils, Pens & Thin Markers To Maximize Versatility, Includes A Pencil, Ideal For Ages 8 & Up, Lifetime Warranty.