4 * 20/30/35/40/50/60/70/80
5 * 30/35/40/50/60/80/100
6 * 40/50/60/80/100
8 * 40/50/60/70/80/90/100
10 * 50/60/70/80/90/100
12 * 80/90/100/110/120
