Extended anchor roller, usually mounts on the opposite side of the chain plate, like the factory anchor roller. Gives you a place to hang your anchor while using the factory roller to mount a spinnaker bow sprit. Also, the extra length may make it easier to hang a plow anchor. Includes mounting hardware, you will also need 3M 5200 sealant. This anchor roller is 3 inches longer than the factory anchor roller. Be aware that some plow anchors may not fit under the Roller Furling Units. Be sure to measure the height of the anchor before you purchase.