Product parameters: This egg opener and shell piercer has a compact, rounded stainless steel design. The title indicates a stainless steel construction, while the image shows a smooth metallic top with a darker base. It is designed to make a small hole in the shell of an uncooked egg before boiling.

Core functions: The spring-loaded structure helps to pierce the eggshell with simple downward pressure when the wider end of the raw egg is placed on the platform. According to the information provided, it helps to reduce cracking during boiling and can make the eggs easier to peel afterwards. The retractable needle design supports safer handling, and the safety lock helps to keep the needle hidden when not in use.

Suitable scenarios: This tool is suitable for kitchen use when preparing boiled eggs. It can be used before boiling to make a small hole in the shell, and the provided description also mentions use for keeping the eggshell intact for eggshell rice preparation with rice and water added inside.

Product summary: A semi-automatic stainless steel eggshell piercer with a spring-loaded and retractable design, made for easy egg preparation, reduced shell cracking during boiling, and safer daily handling.