Blocks can be really useful in the practice for both the beginner and seasoned yogis.
For beginners, yoga blocks can be used when the flexibility isn't quite there yet,
For more advanced yogis, try it with revolved triangle pose.
Material: High Density, Non-Toxic, Stretch-Resistant
The key point to remember when you're using a block this way is to not sink or rest your hand on the block. Rather, keep the fingers spread, and use the hand like a suction. This engages the muscles in the hands and arms and in this pose will help the body find a lift which engages and lengthens the obliques and psoas.
Stretching is not the only thing a yoga block can be used for. It can also be used for general strength exercises. Putting a yoga block in between your legs or holding one in your hands can introduce an additional element of resistance during strength training, by making the exercise more intense and satisfying. As already mentioned, most yoga blocks are made of foam, which is cheaper. When you do strength exercises, the use of a heavier yoga block can prove to be more helpful than using a very light one. More weight, means more work for you. If you're just starting out with yoga, you might really want to consider getting one, especially if you're having issues with stretching or flexibility, which is something that first-time yoga practitioners commonly encounter.
Here is yoga bricks can solve major problems in the body: