Are you even doing yoga if you don't have a yoga block?
Look, beginners don't need equipment. You can absolutely start with nothing but yourself and a bit of floor.
 
But once you've been practising for a while? Come on. You're an experienced practitioner now. You have earned the block.
 
A yoga block is one of those deceptively simple bits of kit that you'll wonder how you ever lived without. More support, more options, more ways to explore a pose.
And, importantly, cats really love scratching them.
 
Yogamatters Yoga Block
High-grade EVA foam
Lightweight: approx. 200–300g
30cm × 20cm × 5cm
Rounded edges and corners
Durable and scratch resistant
Suitable for all styles of yoga
Single block