Fold hair in a bun on the back of your head. Hold with one hand. In other hand place one comb over finger tips.
Slide one comb, the round side snug against your head, behind your style.
Your comb hand now holds the style through the beads, and leaves the other hand free.
Pull the other comb over your style, turn it and push it in firmly behind the style on the other side.
Push your two combs together.