Key benefits - Portable and lightweight: small and easy to carry, convenient for transport and storage. - Durable construction: made from high-quality plastic, rubber and metal; rust resistant and robust for long-term use. - Easy installation: quick to install with a screwdriver or wrench; use with a thick cloth and some oil for lubrication. - Replacement ready: includes 4 gears in total (2 base gears and 2 inverted thread reverse gears) to replace old or damaged gearboxes. What’s included - 2 base gears - 2 inverted thread reverse gears - All other components correspond to the original mixing gear set design for replacement use Materials and durability - Components are composed of plastic, rubber and metal, combining toughness with resistance to rust and wear for extended service life. Installation guidance - Easy to install using common tools (screwdriver or wrench). - Recommend wiping surfaces and applying a small amount of oil for lubrication during assembly. Use scenarios - Workshop or hobby projects: suitable for small bench-top mixing devices where a compact, reliable gear set is needed. - Maintenance and replacement: ideal as a replacement kit to refresh worn or damaged gearboxes in existing systems. - Field or mobile work: portable kit that supports on-site servicing where rust resistance and durability are important.