Measuring a bicycle chain's pitch can be used to identify chain wear and flag the need for a replacement chain and/or cogs and chainrings. Bicycle Chains: Length, Width, What's Best to Buy etc.
An industrial, or scaffold, piercing is made up of two holes that are connected by a single piece of jewelry (usually a long barbell). An industrial piercing is commonly made through the cartilage on the upper ear, with one hole close to the head and the other further down on the outer rim. Two or more industrials on one ear is sometimes referred to as an ear cage.
Genital piercing is a form of body piercing. It involves piercing a part of the genitalia, thus creating a suitable place for wearing different types of jewellery.Genital piercings can be done in men or women, with various forms of piercings available.The main motive for both genders is beautification and individualization, in addition some piercings enhance sexual pleasure by increasing stimulation.enital piercings can be done in men or women, with various forms of piercings available. The main motive for both genders is beautification and individualization, in addition some piercings enhance sexual pleasure by increasing stimulation.