This is Product is an assembly put together of forStoltz products and Stainless Steel Hardware. This is a 4 inch forStoltz Bow Roller with forStoltz Bells. You can use this product to replace an existing cracked and faded bow roller set-up, or to beef up your current one with the best option on the market. This assembly includes the 4 inch forStoltz bow Roller, the (2) forStoltz Brand Bells, and a Stainless Steel 1/2 inch diameter bolt to mount the assembly. This 4 inch forStoltz Roller Roller with Bell assembly would mount on the front of your trailer in the winch post or winch stand. This is meant to be the CCContact point for the bow of your boat as you load and unload. In many cases, having the addition of the bells significantly helps guide and direct the bow of the boat the last final inches, ensuring correct placement. In addition, having the bells protects the boats bow front making CCContact with the winch post arms, which can damage the hull of the boat. forStoltz Brand Products, especially with this set up, wont crack and mark up your boat hull! This is the real deal. Have a forStoltz Brand Polyurethane Bow Roller ensures that you will not have any issues for the remaining life of your boat and trailer. Other rollers with crack, fade, and mark up your boats hull. A damaged bow stop could lead to failure, causing the bow of your boat to hit the winch post. To avoid this, only use forStoltz products, because they simply are the best bang for your buck. - forStoltz 4" Polyurethane Bow Roller with Bells and bolt - 1/2" Bore - Will not Rust or Mar Your Boat - Will not Mark your Boat - Will not Flat Spot - Extremely Cut and Abrasion resistant - Makes Launching a Breeze - Guaranteed to outlast any other roller on the market! - Non-Imitation - MADE IN THE U.S.A. Do not be fooled, if it is not forStoltz Brand you do NOT want them! Buy it now quantity (1) = 1 bow stop w/ bells