Hydréa London Set - 3 x Fina Silk 2.5" in Tube Hydréa London Set - 3 x Fina Silk 2.5" in Tube Containing 3 Fina Silk sea sponges perfect for deep cleansing in hard to reach areas, like the eyes and nose. The Hydréa London Fina Silk in a tube will deeply exfoliate your skin leaving it looking and feeling soft. Also great for applying foundation, concealer and other types of make up.