Sea Pearls Plus are the largest size sponges we offer. These sponges come from the Mediterranean Sea and are the softest, densest sponges available sized at 3.5-4.5". Here at Jade & Pearl, a great deal of care is given to every single sponge we send out. Each Sea Pearl is washed, inspected, trimmed, and packaged by our expert sponge squad. The detailed care that goes into each sponge ensures that we continue providing the same high quality sea sponges that we have offered to the women of the world for the past 40 years. • extremely soft, dense, & durable • sustainably harvested naturally renewable resource • free of chemicals, bleach, or synthetic materials • reusable for up to 3 months or more