Tie Down Engineering Hull Sav’r Poly Vinyl Amber RollerPoly vinyl rollers are long lasting, will absorb shock, are cut resistant and will not mark or mar your boat. Size 4″ with 1/2″ hole.Part #:241-86142Manufacturer:TIEDOWN ENGINEERINGManufacturer Part #:86142Order In Multiples Of:1Case Quantity:6 AttributesDescriptionBow Roller w/End BellsSize4″Hole1/2″ColorAmber