Axillary crutches; adjustable height
Only use with the advice of a health professional. heck the rubber ferrals at the bottom of the crutches to ensure there is adequate grip.
Here is a link to adjusting the height of your crutches correctly:
https://www.verywellhealth.com/crutch-positioning-and-sizing-2696290
Here is a link to using your crutches correctly
https://www.ortho.wustl.edu/content/Education/3628/Patient-Education/Educational-Materials/How-to-Fit-and-Use-Crutches.aspx