The sennhesier H wireless headphones have been touted as the best wireless set of gaming headphones. The headphones have excellent bass and mids, not to mention they are wireless! Unfortunately, they arent for everyone. Especially if you have big ears like me. These headphones are extremely tight on the ol' noggin so they tend to crush my ears. These spacers aim to fix that. Essentially what they do is extend the body of the headphones allowing for a deeper space for your ears. You need two of these per ear. Four in total. Position them in the print bed so that they print out as an arc for the best quality. no support material is needed if you do it this way.