The saddle does have bristles underneath as well as on the rest of the body. The bristles help the worm to move from place to place.
A very harsh brush with steel bristles, in place of plastic etc.
A modern toothbrush is made up of two parts, the handle and the bristles. The handle is made up of plastic and sometimes plastic and rubber with small hole at one end that hold the bristles. The bristles are made up of short strands of nylon and are held in their place in hole in the handle by small pieces of corrosion resistant stainless steel staples.
Bristles were often made out of the bristles of boar before plastic bristles were invented. They might have also made them out of types of plant.
Bristles is what they are called
A toothbrush also has bristles.
The different types of bristles used in paint brushes are synthetic bristles, natural bristles (such as hog hair or sable), and blended bristles (a mix of synthetic and natural fibers).
The Latin word for bristles is setis.
All bristles are safe,
to protect themselves
it has bristles to prevent it from skidding it is also used as brake in them.
Most artificial bristles are made of nylon or plastic.