A hot stone massage is a type of massage that uses hot black basalt stones, which are applied to the body. The stones are placed in warm water and heated to a temperature of around 60°C. The goal is to provide therapeutic relaxation of the muscles with the heat from the stones. In bamboo box. This professional set from contains 60 black natural stones in the following sizes: • 3 extra large stones (sacrum, neck, solar plexus) - 11 x 7 x 3cm • 6 large stones (back and legs) - 7.5 x 5.5 x 2.75cm • 2 deep tissue/trigger point stones - 8 x 3 x 1.75cm • 10 medium stones (8 hands and arms + 2 palm) - 6.5 x 4.5 x 1.75cm • 8 small round - 4.25cm diam x 0.8cm • 6 small facial - 4 x 3.2 x 1.8cm • 6 extra small facial round - 2.25cm diam x 0.8cm • 8 toe - 3.5 x 2.75 x 0.8cm • 7 chakra stones • 4 cold marble round - 4cm diam x 0.8cm