Design & Function: The slippers have strategically placed stones designed to stimulate key pressure points on the feet, intended to improve circulation and reduce tension.Adjustability: They feature adjustable straps, typically made of PU leather, for a secure fit.Usage Tips: The stones may cause initial discomfort for beginners, so it is recommended to wear thick socks during the first few uses to allow your feet to adjust.Benefits: Proponents claim these slippers can help relieve stress, foot or heel pain, and tension caused by conditions like neuropathy or plantar fasciitis