Using the Earthlite Full Circular Foam Bolster is easy. For knee or ankle support, simply place it under the desired area of your client during a massage session. If you're using it for side posture support, position it alongside your client's body. When it comes to cleaning, unzip the outer case and wash it according to the care instructions. Make sure to let it dry completely before zipping it back on. Keep the bolster away from sharp objects to avoid tearing the outer case. Although it has no electrical components, it's best to store it in a dry place. The 1 - year limited warranty covers normal usage, so if you notice any defects, contact the manufacturer. If the setup is included with your order, follow the provided instructions carefully, or you can set it up on your own as it's a universal installation.