Sta-Plug Mini is Forespar's new form fitting emergency plug. All the benefits of the standard Sta-Plug in a smaller, compact size. A soft cone shaped design allows it to easily fill the irregular shapes of hull impact breaches, as well as any round hole leak from a hose or through-hull. Unique edge gripping riblets help hold the plug in a hole, keeping water out. The riblets help Sta-Plug conform to the shape of the hole, sealing a leak near the edge where a tight fit is crucial, and holding the plug more securely in place. Different by design, Sta-Plug's shape includes a series of concentrically larger riblets stepped along the length of the cone. It is The Emergency Plug that Grips! Made from high strength elastomer composites (rubber-like), Sta-Plug Mini will remain soft and ready to go for years and will not mold or swell up like conventional wood plugs. Made from strong elastomer composites not susceptible to mold or swelling.