The Silent Running Spring Swivel Kit is the ideal, secure, and professional option for mounting a hammock chair from a ceiling Joist. It has been observed that people often enjoy bouncing and spinning in our Caribbean Hammock Chair, so we have designed our Silent Running Spring Swivel Kit to spin with you. Unlike traditional stationary lag bolts, our swivel will never back out of the ceiling, ensuring safety and preventing any unpleasant surprises. Made with precision engineered bearings, our swivel eliminates any grinding noises or rough metal sensations. It is also constructed entirely of stainless steel for long-lasting outdoor use. Additionally, our 8-inch Hammock Chair Spring adds a touch of suspension to your chair, creating an even more comfortable ride. The included chain and hook allow for easy height adjustment and safety, with everything made of durable stainless steel.