<P> A watch strap, watch band, or watch bracelet is a bracelet that straps a wrist watch onto the wrist . Watch straps may be made of leather, plastic, rubber, cloth, or metal, sometimes in combination . It can be regarded as a fashion item, serving both a utilitarian and decorative function . Some metal watch straps may be plated with, or even in rare cases made of, precious metals . </P> <P> Watch straps may close with a buckle or a folding clasp . Expanding watch straps are designed to expand elastically, often by the use of metal springs in a segmented design, and may be slipped on like a bracelet . Attachment points for the strap to the watch are largely standardized, with a spring - loaded double - ended pin used to anchor the watch strap to holes in a bracket that is integral to the watch case, allowing worn watch straps to be replaced or swapped with new straps for fashion purposes . </P> <P> Both metal watch cases, and watch straps incorporating metal parts can sometimes cause contact dermatitis in susceptible individuals . Special anti-allergy watch straps, like a NATO style watch strap, which shield the skin from exposure to metal parts, are available for sufferers of this type of dermatitis . </P>

What are the parts of a watch strap called
find me the text answering this question