Another little gem in the Lavika accessory line - this is no ordinary boat sponge! The Lavika deluxe boat sponge is an ergonomically shaped multitasker. One side of this highly absorbent synthetic sponge allows you to lift out water and sand from your boat hull. The other side has a mesh surface that allows you to scrub. Practical snap-on strap attaches the sponge to your boat. Mildew resistant and machine washable.