Practical.
According to the Creative Life Interesting Things Network, stainless steel finger protectors are vegetable cutting protectors. Wearing them when cutting vegetables can prevent the kitchen knife from cutting your fingers, and can also protect the fingertip skin and fingertips from damage, so Stainless steel nail protectors are practical.
Stainless steel is defined in GBT208782007 as steel with stainless steel and corrosion resistance as its main characteristics, with a chromium content of at least 10.5% and a maximum carbon content of no more than 1.2%.