Enough for seventy to a hundred luxurious Thalassotherapy treatments, softening skin and revitalising bone and muscle, warm sea water bathing aids rapid absorbtion of essential minerals. Coarse unwashed granules approx. 3-5mm, quicker to dissolve than chunks, perfect for sea water bathing, approx; 100-150gms per bath and 50gms for sea air breathing in the Aromair air therapy system.