Using two colors of your choice of string that needs to be 70 inches folded in half with overhand knot and the colors arranged like so in the picture. The outside colored strings will be forming the hearts.

To make the first large "V", start with the first string on the left, make 3 knots toward the middle and do the same with the first string on the right and then knot the meeting strings in the middle.

For the next row, repeat step 2 with the second color to make another large "V".

With second string on the left, tie knot to the left. Do the same with second string on the right, tying it to the right.

With the second string on the left, make to knots toward the middle and do same with the second string on the right. Join the two in the middle to complete the small "V"

With second string on the left, tie knot to the left. Do the same with second string on the right, tying it to the right.

With the second string on the left, make to knots toward the middle and do same with the second string on the right. Join the two in the middle to complete the small "V".

With first strings on the left and right make a large "V" to complete the first heart.
Continue from steps 2 through 8 to finish the length of your bracelet.