The American Pressure live swivel is designed for high pressure guns, hose connections, hydraulics, and tangle-free applications. They are considered maintenance free and offer live rotation under maximum pressure. The American Pressure Swivel is a single bearing system with stainless steel internal parts, corrosion resistance, reinforced inner shaft. Up to 4000 psi and 30 max RPM. This is a popular HP gun swivel with multiple applications. Made in the USA!