This model is a headphone/headset holder that can be mounted under the desk using screws or double-sided adhesive tape. I use it for my Sennheiser HD 300 headphones, but it should work smoothly for any headphones with a headband width of up to 2.5 cm. The holder is printed in three parts which can be assembled together and, depending on stability, can be fixed with some glue. The print does not require major support structures, which keeps the visible surfaces nice.