Place cling wrap on a chopping board or kitchen bench diagonally.

Place 1 nori sheet over the cling wrap diagonally (as photo in post indicates).

Put half of the rice on the center of the nori sheet.

Put 1/4 of the mayonnaise on top of the rice, then lay out half the cucumber, half the avocado, and half the crab sticks on top.

Put another half of the rice on top.

Fold all 4 corners of the nori sheet to the center and wrap with the cling wrap.

Set aside for a few minutes and repeat the same process for the remaining ingredients.

When the nori sheet has settled, cut the onigirazu in half and serve.