Custom-fit covers for Mercury engines. The official Mercury logo is displayed in brilliant white against a sleek black background. These covers protect and fit far better than typical universal hoods….. plus they show your Mercury pride on the road.Constructed of 2-Ply Laminated Polyester The outer shell is tough, abrasion-resistant polyester Acrylic coating keeps the cover waterproof and UV-resistant The inside lining is a soft, non woven polyester backing that provides a cushioned barrier around the engine cowling A 1-inch polyweb strap in the bottom hem cinches the cover tight. Includes quick-release buckle for fast tightening and removal 5 year warranty Part# Engine Desc Engine Size 150636 Optimax 2.5L PRO XS 135HP, 150HP, 175HP 150637 2-Stroke 2.5 L V-6 EFI 2.5 L V-6 Carb 4-Stroke, 2-Stroke 150HP, 200HP 150HP, 200HP 75HP, 90HP, 115HP 75HP, 90HP 150638 Optimax 3.0L PRO XS 2-Stroke 3.0L EFI 200HP, 225, 250HP 200HP, 225, 250HP