Easy to operate, large and easy to read digital display + long lifespan, 3D sensor pedometer, pursuing simple elements; Plastic frame; Pedometer (displays up to 99999 steps), Comes with a strap for easy carrying; Large strap hole; Eco design for about 2 years; Pedometer clear function; Coin open/close battery lid; Number size: Length 0.7 inches (19.2 mm); Approx. H 3.3.36 mm) x W 7.3 x W 7.8 x D 1 mm). .25cm (approx.) 1.1 oz (30 g); CR2032 x 2 pieces.