Five years ago when my daughter started cruising/walking (she's almost six now) I looked everywhere for a table edge bumper. I found the ones that stick to the table's edge but thought it won't work. Finally I found this one on just one website (wasn't that widely available back then I guess)! I took the chance of ordering it and now five years later I am extremely glad I did. First, we gave away our wrought iron/glass top coffee table(thought it wasn't infant-friendly) and got a square table with round corners and a little round sides. But still my daughter kept on bumping her head. This is when I got this table edge. Our table's circumference is 132". So I ordered the small size for a snug fit (I thought if it doesn't fit I'll use it for the side table). Luckily it fit perfectly snug. There's no way my daughter can pull it and get her head or other parts trapped. Our side table's circumference is 96" and I tried to fit it on but was a little loose (the child can easily pull it).
It does work for every shape table (round, rectangular, square, oval,...). After five years of continuous use with our tom boy rambauctious daughter it started ripping at the center sewing line. Now I am buying a new one for our son who's just starting to cruise/walk. Couldn't be happier with that purchase.
I think if your table's circumference is closer to the lower range of the suggested fitting size then the bumper will be loose fitting. Try sewing the extras like one reviewer did. every single one of our friends with toddlers got a similar one. I am very happy to find it more available than 5 years ago. Worth every penny. It saved our daughter countless bumps over the years.

This sounds great but, I have a question before I buy it...
Will this work on a round, solid wood coffee table?
It is 124" around and about 2 inches thick.

Our kitchen table has pointed edges , almost everyone who buys this product uses it on the coffee table but it has saved my 2 year old from countless head injuries because often times kitchen tables are at eye level for toddlers . we love the product and have an extra one so that we can switch them out .

We bought this when my daughter turned one. Being a stay-at-home mom, I thought supervising my daughter 100% will save her from falls and bumps. No matter how vigilant I am and how I try to be be as quick as I can to catch her, falls and bumps still happen, especially from our solid wood coffee table. She always got a bruise on the forehead or cheeks. I put off buying this because of the reviews I read here, it might not fit properly, the baby might not be able to use the table as support standing up because of this bumper, it's not worth your money etc etc.

Out of desperation since I cannot find any other alternative, we bought it in the end. I thought I'll just sew it just like one of the moms here did in case it didn't fit. GLAD WE DID BUY IT! This saved my baby from those hurtful bumps, she hit the table few times and didn't even cry. Just for that, I can say I got my money's worth. Fits our 160-inch table, my husband just attached around 4 mounting tape strips to secure it more firmly.

I agree it is not the best if the table is on the lower edge of the range, but it works great for protecting the furniture. It is also better if the baby is fairly mobile -- not in the 'pulling-up' stage. The product does state 'it is only a deterrent and not to be substituted for proper adult supervision'.