The stopper belongs to the extensive section of door fittings. It controls the opening angle of the door, preventing chipping and damage to the interior door slabs in hard contact with furniture or a wall. Door stoppers are presented in an abundance of modifications that differ in structure, appearance and location. According to the last criterion, products are divided into those that are installed on the floor and those that are mounted on the wall. It is easy to mount them yourself by following the instructions below.