This type of pose is for arm balance and you do it by bending forward on the floor.
Start with the cross-legged position. Bend your right arm to your right knee by lifting the right sole on the top of the knee as high as you can. Put both palms of the floor and straighten your legs. Press the palms on the floor by putting pressure on them. Shift both legs to the right leg and try that same position to the other side.
It strengthens the arms with the abdominal muscles by improving the core strengths.