Vacuum weight will be 90-100g more of a midi weight Approximate weights mini 45g midi 90-100g regular 120-130g Hybrid Molds are a cross between 3D and vacuum molds. They are a 3D printed one piece mold with easy release. Our molds are made of PLA. PLA stands for Polyactic Acid Printing DefectsThere may be slight discoloration or other printing defects on printed products. This will not affect the performance of the molds. CleaningRinse your mold under cool water and towel dry to clean mold. Never soak your molds as they can retain water. Do not place your molds in the dishwasher. PLA is susceptible to heat, so please do not use warm or hot water. Refunds We do not offer refunds or cancellations on any orders. If you have any issues with any item, please contact us directly.