Dimensions are 3-1/2" wide and 1-3/8" tall, and it is a single 10' long piece rolled up in a box. It is heavy duty molded PVC so think about extra thick vinyl. Rolls out easy, sit in the sun for a few minutes, cut, and install. Cuts easily with a reciprocating saw. I use it on a couple of 4x4 posts/pylons driven into the lake bed next to my dock walkway that are basically my pontoon docking spot. The size is perfect because it spans the width of a standard 2x4 or 4x4. Installed with some stainless 1" panhead #10 screws. Did not have to drill pilot holes but would have if the posts were new. So far it is holding up great. The thin white coating for the outer layer gets some rub throughs but the guard itself is very strong and has sustained no damage...and I'm on a "wakeboard cove".... nor has it allowed any damage to my boat. For reference, my posts stick up farther than the top of my 2017 pontoon fence so there is contact and rubbing of one of the seat backs and/or fencing rail but so far no damage or rub marks on the pontoon.

Protects dock edges well , easy to install, will mark up if toons of boat make contact . Put on in warm weather so other complaints of having issues installing didn't happen. Will buy more if I need to

Nice product that came tightly rolled up. I put it in the oven at 175 for 5-6 minutes and pulled it out and then rolled out and it laid flat on the floor. Easy to install once warmed up. Drilled 3/16" holes for #10 stainless screws about every 12" and 1" in from each end. Looks good..

Looks nice, works great by protecting both the garage wall and my truck doors.

Came coiled, of course. One edge was significantly rippled; it took a couple of days in the hot sun for the ripples to relax. Appears sturdy but time will tell.