The dermis has connective tissue, blood vessels, oil and sweat glands, nerves, hair follicles, and other structures. It is made up of a thin upper layer called the papillary dermis, and a thick lower layer called the reticular dermis. Epidermis. The outer layer of the two main layers of the skin.
A fastener is a hardware device that mechanically joins or affixes two or more objects together. Fasteners can also be used to close a container such as a bag, a box, or an envelope; or they may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc. There are also special-purpose closing devices, e.g. a bread clip.
crimp (plural crimps) 1  A fastener or a fastening method that secures parts by bending metal around a joint and squeezing it together, often with a tool that adds indentations to capture the parts. ( 2 obsolete, Britain, dialect) A coal broker. ( 3 obsolete) One who decoys or entraps men into the military or naval service.