Staircase

This 3D model of Staircase is a perfect 3D Staircase for 3D stair climbing. Every 3D year several 3D stair climbing races are held around the 3D world with the 3D competitors running up the 3D stairs of some of the 3D world's tallest 3D buildings’ and towers’ 3D Staircases. Some 3D sportsmen have specialized exclusively in 3D stair climbing races. Prizes, awards, and other accolades are given for the top 3D performers by gender and age group. 3D Stair climbing is one of the most grueling of 3D sports, requiring 3D competitors to move their entire body weight vertically, as well as horizontally.