1. our built-in comb smoothly separates your lashes to create a curl, unlike traditional eyelash curlers that can cause lashes to overlap and twist in different directions.2. all metal parts are made of carbon steel (a stronger and more durable metal than stainless steel). Spring loaded hinges help regulate the correct pressure applied to the lashes.3. the built-in lash comb only touches your lashes (not your eyes), giving your lashes extra support as they curl, creating the right shape, not an overly curled shape.4. ergonomic design (peach handle) makes it easier for your hands and fingers to use. Uniquely designed peach handle is delicate and cute with non-slip function for easy operation.5. Eyelash Curler - Suitable for most people's eye shapes and sizes, both Asian and American.