You will enjoy choice of one lava shells massage from the selection lava shells relax massage this is the ultimate calming massage lava shell relax is the soothing solution deep tissue work on the feet legs back and shoulders ease away all muscle tension knots and stress points unblocking energy flow and releasing a sense of balance to the entire body and mind lava relax massage uses hygienic self heating ceramic tiger clam shells which have the perfect shape and size for massage