How to use it? Simply press the large end of the raw egg on top of the the stainless piercing needle, this easy egg piercer pricks a small hole to separate the shell from the proteins of the eggs before boiling, and makes peeling the egg easier after boiling Will it hurt hands ?The stainless egg poker has a safety lock feature, built in spring to enable the needle to expose, switch to "Lock", the needle won't be exposed and sharp to pierce a tiny hole on the egg very easily, so honey you can use it boldly because it is safe enough How long the lifespan? Our simple egg hole puncher is a 304 stainless steel egg tray and a base made of PP material, it is sturdy and durable, and the kitchen tools has been proved to be of long service life and with wide adoptable technology in practice Can it be a gift? This is the best gadget for your friends who have had trouble for many years because the egg piercer is a very compact and useful kitchen accessory, many of families and friends are getting this for Christmas and Thanksgiving Here is one pointAlways go toward the poles of the egg and not around its equator, and always press slightly on the peeler while under the shell keeping it tight to your guide finger, this will help you peel your eggs optimally! No cap, enjoy them eggs kiddos!