Light and easy-to-handle for accurate measurements on firm surfaces, both indoors and out,. Dual wheels provide exceptional traction and stability. Completely sealed push button counter records feet and inches to 10,000 feet without resetting. Three-piece telescoping handle collapsed measures 19¼ ", extending to 40½" Wheel circumference 1 foot. Wheel diameter 4". Weighs 2 lbs. Safety-glow green counter casings. Three-year warranty.