New Speed-XP hydrophilic thermo bonded material creates water on water surface eliminates surface drag. New Speed Covers hides mounting hardware for a sleek look and eliminates water "slap" against back side of hole. Installs on most OB motors as well as stern drives. Available in White, Gray or Black and in 2 sizes: Jr Size for motors 1 1/2 HP to 40 HP and Standard Size for motors over 40HP.