1. Attractive design: The rounded shape and sloping shoulders give these plastic cans a modern and sleek appearance that appeals to customers.

2. Lightweight: Plastic face cream cans are lightweight, making them easy to transport and handle.

3. Durable: Plastic is a durable material that can withstand wear and tear, ensuring that the product is protected during shipping and storage.

4. Airtight seal: The cans are equipped with airtight seals that prevent air and moisture from entering the container, preserving the freshness and effectiveness of the product.

5. Tamper-evident: Many plastic face cream cans come with tamper-evident features, such as a seal or shrink wrap that shows if the product has been opened or tampered with.

6. Customizable: Plastic face cream cans can be made in different sizes, shapes, and colors to match the brand's identity or differentiate from competitors.

Overall, rounded plastic face cream cans with sloping shoulders offer a sleek design, durability, and functionality to protect the product's effectiveness and integrity.