Yoga props are needed to practice yoga correctly with awareness. You may not be able to have all the props at one time, but we recommend gathering your props slowly with time, since it is an investment in your own well being.
Ideally, we recommend having:
1 yoga mat (less than 5mm) 2 bricks (not of soft foam) 1 (long) yoga belt 3-4 blankets 1 bolster (not soft) 1 yoga chair
Other household items can be used too such as towels, bedsheets, waist belt, regular chair, etc. But this requires some experience to use them efficiently. Using classic props aids in better communication and precision.