Put avocado in a bowl and mix with lemon juice. Set aside.Note: Lemon juice will avoid the avocado to turns black in color. Cut the Nori sheets in half crosswise.
Cover the mat (or bamboo mat) with plastic (such as cling wrap)
Place the mat on a flat surface then put the sushinori with rice over the mat. The part that has the rice should be facing down.
Scoop some sushi rice and spread over the sushinori (make sure to distribute the rice evenly)
Sprinkle some sesame seeds over the rice.
Then, arrange the avocado, pickles, cucumber and crabstick in the center of the sheet.
Grab the edge of the mat, keeping the fillings in place with your fingers, and roll it into a tight cylinder, using the mat to shape the cylinder. Set aside.
Continue doing the process until all the rice are used.
Trim the edge of the rolled sushi then cut the cylinder in half using a sharp knife
Slice each half crosswise into three equal pieces.
Place in a serving plate then serve with soysauce and wasabi. Share and enjoy!