Kitten / Cat ears headphone accessories are intended for mounting on headphones using the included velcro. Each kitten/Cat ears have 2 parts that can be changeable the inside part, like in the video. They are 20 Colors that you can choose and combination by select Primary Color for outer part of ear and Secondary Color for inside part ear. Each kitten/Cat ears size is 1.5" x 1.75" x 2.5", and have a hole behind it for loose the inside part by insert a pen or something can enter into the hole and press while shaking to loose the inside part. Each Velcro length is 5 inch so will fit almost any brand of headphones. And have 6 colors that you can select when chekcout. (colors selection in the last image) Velcro color selection is White, Black, Red, Yellow, Blue and Green. Due to the nature of 3D Printing, small imperfections and layer lines may occur. And Colors may vary due to different monitor specifications. *Headphones not included* "Price for a pair" * How to order : Please choose velcro color in the choose a color selection tab, and send me a message or write a note what color for the inside and outer parts of the kitten ears.