Cork is firmer, heavier, and more durable. It doesn't compress under bodyweight, which makes it stable in standing poses and inversions. Foam is lighter and softer, but loses shape with regular use. For most practices, cork is the longer-lasting buy.

23 × 13 × 8 cm is close to the standard yoga-block size used in most studios -- works for the vast majority of adult practitioners across Triangle, Half Moon, forward folds, seated postures, and supported work.

One block covers most poses. Two open up more options -- symmetric support in seated postures, paired Warrior assists, supported savasana under the knees and head together. If you'll practice paired-prop work, get the pack of 2.

Yes -- it's one of the most useful props for beginners. The block reduces the range of motion required in forward folds and standing twists, so you can hold proper alignment before flexibility develops.

Most commonly: Triangle (Trikonasana), Half Moon (Ardha Chandrasana), Seated Forward Fold, Supported Bridge, Pigeon, Supported Fish, Warrior III, and any restorative pose where the body needs something firm to lean into.

Wipe with a damp cloth and mild soap after practice. Rinse and let it air dry completely before storing. Cork is naturally antimicrobial, so odour build-up is rare.