I think this has to fall under the why didn't I think of that category. This bumper fits on the boom and fastens with velcro. there are spaces for the main sheet to go in and out unobstructed by the cover. If you use a few boats with the novices or you have a novice you want to protect this is for you or your program. Availability: Usually ships the next business day. BPPRegular price: $19.99Sale price: $14.99 Due to the wide variety of the size and weight of our items we will charge the actual cost of shipping in a separate charge on all orders. Please email us for a shipping cost estimate. Shipments outside the USA may have add on fees and duties by your own government. Sailing can be green! See our recycle your old sail offer Send us email