All natural sea sponges are a luxurious and eco-friendly upgrade to plastic shower puffs. A gentler way to get clean, our sea sponges are soft and safe enough to use on a baby. Sustainably sourced from the Caribbean, we selected the biodegradable "Wool" variety of sponge for its soft feel, durability as well as antibacterial and anti-fungal properties. Eco-friendly + Biodegradable. Wool sponges are extremely absorbent and very soft, producing a rich, creamy lather. The soft texture is ideal for sensitive skin, and is even safe enough to use on infants. SIZE: 4.5” – 5” Tip to help prevent bacteria growth: Disinfect your sponge monthly by soaking it in a cup of warm water with several drops of tea tree essential oil and one tablespoon of apple cider vinegar.