1. Put A1 and A2 into C1 and C2, use G1(hex key wrench) to fasten E1, E2 (metal screw) to the above 2 parts.
2. Connect B1 and B2, attach B1 and B2 to A1 and A2 with butterfly knobs.
3. Freely adjust the height of A1, A2 and length of B1, B2 to meet your needs.
4. Insert F1 into holes C1 and C2, securing C1 and C2 to grass and land.