Briwax ChaiRX is first aid for loose chair joints. Not too long ago, complete disassembly would have been required to fix a chair with loose joints. Not anymore! ChaiRx is injected into the joint via a small hole that you drill, and the thin unique formulation penetrates the wood cells, permanently swelling the joints and bonding them together. In just 12 hours, your chair will be wiggle free and ready for service. Each package contains 4 oz. of ChaiRX, a syringe and 3 needle tips. Complete instructions for application and cleanup are included.