How to ChoiceBlack, Please check your motor ""Length"" to choose tSUITABLSIZE. If you didn't sure thSIZE, please choose the largeSIZE. outboard motor cover, waterproof engineer cover, outboard engine cover--This 420D Outboard Motor cover designed for protecting your motors from rain, water, dust.--Designed with drawstring, easy to install or remove it without tools.--The Oxford cloth will not shrink or stretch in daily use.--Outboard Motor Cover extend your motor service life.Full Outboard Motor Engine Cover--Waterproof Boat Cover with 420D Heavy Duty Oxford Cloth--Extra PVC Coating Fit for MotorsProduct Name: Outboard motor cover, waterproof outboard engine cover, waterproof outboard motor cover Outboard Motor CoveSIZE and Type:Fit for 25-50 HP: 23""D X 17""W X 16""HFit for 50-115 HP: 24""D X 23""W X 18"" HFit for 115-225 HP: 28""D X 27""W X 18""HFit for 225-300 HP: 31""D X 28""W X 24""H?Heavy Duty waterproof outboard engines coveCompatible with most brands like Mercury, Yamaha, Honda, Suzuki, Nissan.NOTE: Please go by the "" Length "" of your motor to choose thSIZE.If your motor is special or you don't sure thSIZE please choose the largeSIZE.