Square-shaped grommets provide a different aesthetic and are sometimes used in applications where a square or rectangular opening is more fitting.

Snap-In Grommets: These grommets are designed to snap into place without the need for tools, providing a quick and easy installation. They often have a self-locking mechanism.

Self-Piercing Grommets: These grommets have a built-in piercing feature, eliminating the need for pre-punching holes. They are commonly used in fabric and leather applications.