3.5" Boat Trailer Bow Roller Upgrade Easy Install High Visibility Bow Roller.Bright yellow color helps you see the Boat Trailer Roller clearly during loading and alignment, even in low light or murky water conditionsThe Marine Trailer Accessory is made of high elastic PVC material reduces impact and cushions the bow to prevent hull damage or scratching during transportingThe Boat Trailer Bow Roller is designed to fit most marine trailer bow stop brackets. Please Note: size is 8.9x9cm/3.5x3.54inch. Extra width helps to grip the bow of the ship during loadingSimple to install using your existing hardware, ideal for trailer maintenance or part replacement at home (NOTE: Excluding screws in package)The Bow Roller is ideal for replacing cracked or worn rollers, a must have tool when prepping your boat for summer trips3.5" Boat Trailer Bow Roller PVC Assembly. Boat Trailer Roller High Visibility Reliable. Bow Roller Replacement for Bow Stop. Marine Trailer Accessory for Boat Loading Hauling. Trailer Upgrade must have tool Easy Install. [Standard Size]: The Boat Trailer Bow Roller is designed to fit most marine trailer bow stop brackets. Please Note: size is 8.9x9cm/3.5x3.54inch. Extra width helps to grip the bow of the ship during loading [Essential Trailer Upgrade]: The Bow Roller is ideal for replacing cracked or worn rollers, a must have tool when prepping your boat for summer trips [Design]: Bright yellow color helps you see the Boat Trailer Roller clearly during loading and alignment, even in low light or murky water conditions [Easy DIY Install]: Simple to install using your existing hardware, ideal for trailer maintenance or part replacement at home (NOTE: Excluding screws in package) [Protects Boat or Trailer]: The Marine Trailer Accessory is made of high elastic PVC material reduces impact and cushions the bow to prevent hull damage or scratching during transporting