Wood step st. braked fixed castors 2st

Steps with a depth of 150 mm, coated, cover panel with hand opening, side-rails made of steel, grey coated (RAL 7023), non-slip ladder shoes, but complete with 1 set (= 4 pcs.) braked fixed castors for self-installation, the castors have been designed for movement in longitudinal direction and brake automatically when someone steps on the stool