A lifting cup is a thin double-backed paper cup that fits inside the barrel of most 1" Aerotechnic™ devices. Essentially, it acts as an elevator and lifts the payload up evenly. When it lifts, it spreads open and holds back the gas by forming a tight inner wall seal. This in turn maximizes your pushing power because no gas escapes between the paper products inside. The cup also provides a small cargo area that lifts some of the payload to a high point and then dumps it!