Each base has a small notch, a small flat screwdriver fits in this notch. Carefully inserting it into the notch and slightly prying the insert out. Inserting a new insert is usually easy by pushing it in manually.

If you can’t figure it out, you can always send us an email with a photo of the chair. We will respond as soon as possible and perhaps ask you some questions. We try to work it out together or offer you an alternative. We also realize that there are chairs on the market for which no solution is possible within our system.

In order to minimize the return of products to a minimum, we ask you to take a good look at the dimensions of the caps. If you have serious doubts, you could also contact us. For other return conditions you can look at this page.

If in doubt, you can contact us by e-mail and possibly send some pictures to clarify things. You can also choose to order the caps for only 1 chair and then see if they are the right ones.

Here you will find a “diameter meter” document. If you print it, you must ensure that you do not scale it. A circle is drawn on the document, if exactly a 2 euro coin fits in here, the scale is correct. Cut the meter on the black line. You remove the caps under your seat and place the “diameter meter” in the tube leg, until you cannot continue without distorting the paper. Now you can read the correct diameter.

Even more accurate is the use of a caliper.

This depends on many factors; how heavy is the chair? How coarse is the floor? How many joints are there in the floor? Are they wide joints? Do I slide in the longitudinal direction of the wood? In short, we cannot determin this. We are convinced of these caps and their quality. We have been selling these caps for a few years now and the caps last much longer than the caps that the customers used before. With coarse floors, there is a trade-off that felts or ultrasoft wear out faster (which all caps do on these floors) that customers sometimes switch to black or hyper. Over time, these customers still return to the softer felt inserts because of the noise. So the choice of the insert and the associated lifespan is also strongly dependent on which choice the customer ultimately makes himself. A few tips for a longer lifespan: Choose the right insert for the right floor. Usually a few chairs are used most often, swap the chairs. Which is not only good for the inserts. If you have a heavy chair and a coarse floor, opt for a larger diameter base.