Rubber Door Stopper
Rubber door stopper is a device, usually made of rubber or a similar material, that prevents a door from swinging too far open and hitting a wall or other object. It can be a heavy object, a wedge, or a projecting piece attached to the floor or wall. The primary function is to protect walls and doors from damage.

Here's a more detailed explanation:
Purpose:
Door stoppers are used to prevent doors from swinging open too far, which could damage the wall, door frame, or other objects in the path of the door.
Types:
Floor-mounted: These are attached directly to the floor and can be used in situations where there isn't a wall or skirting board to mount them to.
Wall-mounted: These are attached to the wall and often have a rubber or plastic tip to protect the door from damage.
Wedge-shaped: These are placed under the door to prevent it from moving.
Materials:
Door stoppers are commonly made of rubber, but they can also be made of metal, plastic, or other materials.
Benefits:
Using a door stopper can protect walls and doors from damage, prevent wear and tear on the plaster or paint on walls, and reduce the risk of injury caused by slamming doors.