Natural sponge is a 100% natural product that is highly absorbent, incredibly soft and durable. It cleans itself after being rinsed thoroughly. Unlike synthetic sponges, there is no build-up of foam, soap or bacteria. The sponge is hypoallergenic and dermatologically tested. It is natural and not industrially manufactured. It is produced in Italy and undergoes strict quality controls to ensure it meets the highest standards. As sponge is a natural product, its diameter and size can only be approximate. The sponges are measured using a special tool and not a traditional meter.