Massage stones are highly polished, high-quality basalt stones with a smooth and shiny surface. The different sized stones make it easy to apply the Hot Stones' beneficial effects to all parts of the body. The large stones stay warm for 45 minutes, as is essential for this type of massage treatment. Contains (approximate measures): • 1 pcs 11 x 7 x 3 cm • 8 pcs 7,5 x 5,5 x 2,75 cm • 12 pcs 6,5 x 4.5 x 1,75 cm • 12 pcs 3,75 x 3 x 1,75 cm • 2 pcs 8 x 3 x 1,75cm • 8 pcs 3,5 x 2,75 x 0,8 cm • 2 pcs 4 x 3 x 1 cm