Select the most suitable subscription based on the expected yearly production needs. As a metric, you may use the volume of the inserts. For example, you have a 2-cavity mould, and each insert has a volume of 600 cm3. In that case, your total production need will be 2 x 600 = 1200 cm3 and the Entry package (2000 cm3) is the most suitable one. For new clients, no payments are needed in that phase.