1. When contructed, sticks can be used to penetrate the roll of net cushion and pull out the net cushion. You should nail around the net cushion with bamboo nail or wooden nail and plastic nail. The range between nails should be 30 cm. 10 nails / per square meters.
2. The length of nail is normally 15 cm ( above the surface ), nail length should be lengthed if the soil is loose. When contructed in slope roads, the nails in upward slope should be longer than the downward slope.
3. Net cushion should be kept flat with more nails needed if the earth surface is complicated and varied.
4. Joint parts should be at least 2 cm, nails in joint parts should be nailed more to keep the net cushion tight without space.

5. The shape of the nail and the upper end width of the nails should be twice as the net diameter to keep the net cushion vertical.
6. Grass seeds are planted depending on the greensward condition. Grass seed selection should accord with the local climate. Long roots and small bushes growing many years should be the best choice.
7. The depth of grass seed planting should be in net cushion to take the effects of better protection.

8. After the grass seeds are planted, the surface soil covering will cover the net cushion to avoid the net cushion from sunlights so as to extend the usage time,  but will be helpful for the grass buds to come and grow up.
9. After the grass seeds are planted, water percentage in soil layer should be 40%-50%.
10. When the net cushion is paved in the upper end of slope, the joint part in the direction of lengthway should be angled 60 underneath the surface 30 cm. The bottom end of the slope should have 50 cm flat surface. A storage water channel should be dug out 20 cm away from the net cushion for conveience to irrigate because the upper part of the slope contains more water than the bottom part.
11. Pave work is the key point among the entire projects ( when it is used on the slope ) . The pave work should be done 3-4 months before the rain season so that the grass can have enough time to grow. 

Attention
1. Invalid in the crushed stones surface.
2. Using carefully when the perpendicularity of the slope and the floor is smaller than 45 degree.
3. Can’t be used to the material to face sea surface to protect ascent.
4. Only used to the earth surface establish grass revetment , can not be used to deep add tendon material.
5. Construction should be finished in three months before the rainy season when it is used for rivers welcoming water surface. To ensure that the above sward of normal water level revetment is solid taking form.