This collection includes two porcelain shells. The porcelain Lava Shell is handcrafted using high quality porcelain is Non-porous, hygienic and easy to clean. We are committed to helping the Spa & Beauty industry and its clients return safely to treatments. This is why we have launched the personal Lava Shell Collection with travel bag. This means that you can take your own shell / shells to be used during Lava Shell treatments.