Bicycle gearing is a feature of the drivetrain that determines the rate at which the riders are peddling to the rate at which the drive wheel rotates. There is a shifting mechanism that allows the proper selection of the gear, which is effective in increasing the comfort of riding. For instance, top gear can be used for riding downhill, medium for a flat road, and low for uphill.

Bowling equipment encompasses all the essential gear utilized in the sport of bowling. This includes bowling balls, which come in a variety of weights and designs to accommodate different playing styles, as well as bowling shoes that are specifically designed to provide traction and support for bowlers. Additionally, bowling bags are used to transport and protect the bowling balls and other necessary equipment. Various accessories, such as wrist supports, finger inserts, towels, and other maintenance tools, are commonly utilized by bowlers to enhance their game. All this equipment is crucial in facilitating proper playing of the game and aiding players in maximizing their performance on the lanes.

Blood collection refers to the process of obtaining blood samples from individuals for diagnostic, therapeutic, or medical purposes. It is typically carried out using various devices such as needles, syringes, vacutainer tubes, and blood bags. Blood collection is essential for routine health check-ups, disease diagnosis, monitoring medical conditions, and administering treatments like blood transfusions. This process plays a critical role in healthcare, ensuring accurate diagnosis, treatment efficacy, and the management of chronic illnesses and traumatic injuries.

Automotive engine oil, often known as motor oil, is a lubricant used in internal combustion engines to power motorcycles, automobiles, and a variety of other automotive engines. Engine oil primary role is to minimize wear and friction on moving parts while also cleaning the engine of sludge and varnish.

Automotive software is software that enables the user to interact with the underlying in-vehicle hardware as well as perform control functions in automobiles.

A baby diaper is a type of absorbent garment designed to be worn by infants and toddlers who are not yet toilet trained. Its primary function is to contain and absorb urine and feces, thereby preventing the soiling of outer clothing and the surrounding environment.

Ballistic protective equipment refers to gear designed to protect individuals from bullets and other projectiles. This includes body armor, helmets, and shields, which are constructed using advanced materials to absorb and dissipate the energy from ballistic impacts, ensuring the safety and survivability of military and law enforcement personnel.

Baby toiletries refer to products used for cleaning and grooming babies. Haircare, skincare, and bath products, fragrances and perfumes, and wipes for babies are some of the products offered in the global baby toiletries market. The toiletries not only keep the babies groomed but also protect them from infections and diseases

A beauty salon is a professional establishment offering a variety of cosmetic treatments and services aimed at enhancing personal appearance and well-being. Common services include haircuts, styling, coloring, skincare treatments, manicures, pedicures, and spa therapies. Some salons also provide advanced services like laser hair removal, facials, and anti-aging treatments.

Biogas is produced as a result of the biological breakdown or decomposition of organic matter in the absence of oxygen. This process is called 'anaerobic digestion' and uses biodegradable materials, such as municipal waste, green waste, crops, plant materials, sludge from sewage, manure, and biomass, to produce biogas. Biogas is an alternative source of renewable energy.