1. Shipping and transportation: Plastic corner protectors are often used in packaging and shipping to safeguard the corners of fragile or delicate items, such as furniture, appliances, and electronics. They provide added support and cushioning to prevent damage during transit.

2. Storage and warehouse: When stacking goods or storing items, plastic corner protectors help prevent them from being crushed or deformed. They provide stability and reinforcement to the corners, minimizing the risk of damage in storage facilities or warehouses.

3. Furniture and household items: Plastic corner protectors are used in the manufacturing and assembly of furniture to protect the corners from impacts and wear. They can be found on tables, cabinets, shelves, and other furniture pieces.

4. Construction and remodeling: During construction or renovation projects, plastic corner protectors can be used to shield the corners of walls, door frames, and other structures from accidental bumps, scratches, or chips.

Overall, plastic corner protectors are an effective solution for preventing damage to vulnerable corners. They are affordable, lightweight, and easy to install, making them a popular choice in various industries where corner protection is essential.