Have bought rubber stair treads for a spiral staircase with perforated metal steps. Our two dogs have always remained associated with the claws in the grid. The Stufenmatten I acc. To cut trapezoidal levels and sections glued with adhesive to the steps of this mat, in the range in which the stages mat is narrower than the step. The splice keeps excellent even after three months and the weather has not resolved the splice. Splices roughen well and follow the adhesive instructions. Is a kind of vulkanisiseren surfaces that merge together the materials. Despite the high price, which has put me off initially because I did not know the adhesive result, recommended Top product and fully.