Shells almost fall off by themselves! The egg piercer is made of durable ABS plastic and has a stainless steel needle. It also features a safety lock, which you can turn, so the needle will not be exposed for safe storage. Peeling boiled eggs is now even easier. To use, simply press the large end of the egg down over the egg piercing needle. Creating this tiny hole in the egg prevents the shells from cracking while boiling.