Step 1: fasten your belt first, so that the demonstration can be divided into end A and end B.

Step 2: Fold the A end upward.

Step 3: Cover the B end with the A end, then pass through the hole below the A end, insert it from the other side, and finally sort it out.

Step 4: The key point of technology is that the upper layer bypasses the lower layer, which is easy to complete.

2. Cross buckle

Step 1: Knot the strap and wrap the upper end around the other end from below. draw

Step 2: Pass the end through the middle of the knot, tighten and arrange the shape.

3, diamond buckle

Step 1: Tie the strap, which is also divided into two types: A and B. Take the bottom A end and tie it into a circle, paying attention to leaving enough space. draw

Step 2: Pass the B end around the belt from the bottom of the A end to the upper left corner in the opposite direction. As shown in the figure, look at the trajectory.

Step 3: Finally, pass the B end through the circle just formed by the A end, tighten the button and adjust the shape to complete the diamond button.

4. Bathrobe button

Step 1: tie the knot first, fold the upper end and put the end down, as shown in the figure.

Step 2: Wrap the folded part at the other end around the belt and tie the knot.

Step 3: When finishing, make sure that the part that has just passed is pressed and finished again.

5. Intellectual reasoning

Step 1: The belts are crossed and divided into A and B, as shown in the figure.

Step 2: Pull the A end out of the back of the belt, not completely, just form a circle.

Step 3: Pass the ends of A and B through this circle.

Step 4: Pull down the two ends of the intersection to form an intellectual knot.

Step 5: finally, arrange the folds and tightness, and finish.