These are the horny appendages that grace the extremities of people's toes, as opposed to fingernails which can be found on the ends of people's fingers. They are made from a form of skin containing keratin, a hardening protein.
They allow people to put pressure on their feet while walking. They are also good for picking while watching TV late at night; which can sometimes be a hazardous activity if the toenails belong to a person with bad circulation or diabetes, as infection can set in, and ultimately cause the toes to drop off, along with the toe nails - if gangrene sets in. It is very important that diabetics look after their feet and may make visits to a chiropodist1.
Toe nails often have different appearances:
Some toe nails are yellow and crumbly, which may indicate a fungal infection is present in them.
Others are nice and brightly painted, having a decorative effect. Sparkly nail polish is best, for making them look pretty.
Still others are long, very long as their owners are adverse to cutting them for years at a time.