Yoni Steam Seat with Rose Quartz, Mother of Pearl and Copper in Resin Inlay • 18" inch seat diameter, 8" tall • Extra large 8.5" hole for more exposure to steam • Sturdy design, 350 pound weight limit • Made with sustainably-grown pine wood • Only non-toxic, VOC-free resin is used, safer for you and planet • Vibrates healing patterns of PIEZOELECTRIC pulses from the compression of the quartz in the cured resin - Rose Quartz has a signature vibration of unconditional love, comfort and gentleness • Copper to electrify your intentions of loving, radiant health • Each seat is one-of-a-kind and handmade • Set a tradition of luxurious health for generations, this piece is an heirloom