Introducing Kesonite - A strong, dense metal/resin composite that will tackle rough treatment without the dents or bending of most die cast and metal spoked wheels; The weight of the wheel makes it easier to use and more accurate on rough terrain; 5 Digit, easy read, magnified counter (9,999ft, 11in); Measures almost two miles without resetting; Curved, telescoping handle adjusts to comfort level; 3" wheel circumference; Measures feet and inches; 6 Year warranty