MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black

Great and sturdy product! I bought one of those wide "cross cross chairs" often advertised on social media. For some reason they had sent the wheel-less version even though I chose the option with wheels. After about two years of constantly having to pick up and scoot the chair on carpet I was tired of it. I had some big roller blade type wheels and nowhere to put them, so I bought this to replace the base of the chair and it works great. Easy to put together and holds up. It also lifted my chair a little higher so it's even more comfortable to sit in, and it's made of metal so no flimsy plastic.

This base is much more durable and sturdy than most of the bases we've had come with most of our new chairs. This base is metal and is one piece. Installation is quick.

After receiving little assistance from my chair manufacturer’s support team, I decided to purchase this office chair base replacement, and I’m very glad I did. The product has an excellent appearance, finished in a polished jet black, and feels extremely sturdy. Assembly was quick and straightforward. I simply transferred the wheels from my old base, seated the chair into the center cylinder, and was back to using it in under 15 minutes. An added benefit is that the footprint is slightly smaller, by a couple of inches, than the original base, so my feet no longer bump into it while sitting. Overall, this replacement appears to be of higher quality than the original, and I expect it will last even longer.

Bought this base to add to an office chair. I believe it’s noted in the description but this base does NOT come with wheels. Not an issue I already had some. The base itself gets loose every couple of months or so and it’s not a huge deal, just need to retighten the screws. You’ll know because the chair will start rattling and then you’ll see the legs are a little wobbly. So far retightening has worked and no issues with stripping. Overall a good product.

The original base that came with my Emerge chair was cheap and immediately broke shortly after the warranty ended, and I stupidly stuck with it resetting the wheel in it until I came across this excellent and solid replacement! Grateful this was available to keep me from leaning or all of a sudden dropping a few inches to the ground and sliding out of my chair.

nice and strong

I have a Flexispot C7...awesome ergonomic office chair, until, the plastic base literally split under my big and tall weight. It was rated to 300lbs, and I'm just a bit over that...but, after 8 mos, it failed. So what was I going to do? I played with getting another office chair, rated to heavier weights, but my C7 is pretty darn confortable, I sit for 8-12 hrs per day as I work from home. Then, I found THIS solution. Inexpensive, and rated to 2500...I figured I'd give it a shot. It arrived in less than a week this morning, and 10 mins of simple assembly and my C7 is now ready to roll again! What a great solution to a problem that many of these "normal sized people" office chairs present. Recommend you get the Lifelong Office Chair Wheels Replacement Rubber Chair Casters for Hardwood Floors and Carpet, Set of 5, Heavy Duty Casters for Chairs to Replace Office Chair Mats - Fits 98%...as well, for hardwood floors.

Unfortunately, within a year of using this, the sockets around for the wheels started bending out of shape and grinding against the metal bar/groove of the wheels. This resulted in terribly lopsided wheel "holders." I tried replacing some of the wheels when the leg would finally let one go, but the new ones would remain slightly lopsided. This is NOT rated for 2500 lbs at all - it slowly bends at the weakest point: the ring of metal around a wheel.

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Muy buen producto y buena calidad. Lo compre para remplazar la base de mi silla que se habia roto.

Va genial, a sido una buena compra, se utiliza a diario, y queda mucho más firme la silla.

Avevo bisogno di sostituire la base della mia serie da ufficio danneggiatasi dopo neanche troppo utilizzo. Mastery Mart si è rivelata un ottimo sostituto, di materiale decisamente più resistente e robusto rispetto alla precedente, sono anche riuscito a recuperare le rotelle della sedia che si adattano perfettamente anche a questa base. Nonostante l'utilizzo intensivo, ritrovandomi a lavorare da remoto, non ho avuto ancora problemi da questa base.

Bon produit, très solide, a permis de donner une nouvelle vie à ma chaise. Le montage est très simple, le package est complet avec tout ce qu'il faut dans le carton. Attention tout de même, ça m'a pris bien 15 minutes pour pouvoir retirer l'ancien pied de la chaise, je dis ceci afin que vous soyez préparé, car ça n'a rien à voir avec le produit mais plus dans la préparation, ou un marteau pourrait être indispensable. Je trouve le prix un tout petit peu trop élevé quand même, mais ça reste un bon achat selon le prix de la chaise que vous souhaitez rénover.