Tennis ball on walker leg 

This is intended to demonstrate a way to cut a tennis ball for applying them to the leg or a walker. Consult a healthcare provider if this is appropriate for your case. Make sure tennis ball is secure and not loose as to avoid it coming off.
Please be careful and safe when handling sharp objects. Use a safe surface and avoid cutting blade towards fingers. Should not be performed by minors. If unsure you can perform safely commercial options are available or ask an appropriate healthcare provider such as a physical therapist if they can do this for you.
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