All Rollistop stair fall protection bollards have a height of 1000 mm (1 meter). The poles are available in diameters of 76, 89 or 104 mm. In practical use, the 104 mm version has established itself as the preferred and best-selling model and has become the quasi-standard. The associated bottom plate has dimensions of 200 x 200 x 14 mm for each of the above-mentioned bollards.