VEVOR Manual Induction Sealer 20 mm - 100mm Induction Sealer Bottle Cap Sealing White Sealed Diameter: 20 - 100 mm;Speed: Aprox 20 - 40 cpm. The Induction Sealer is fit for small and discontinous sealing work. This induction sealing machine through non contact induction heating, both the induction film and aluminum foil composite film, in an instant melt, will be tightly glued to the seal (or cup), to achieve the purpose of sealing The hand-held induction cap sealing device has no moving parts and no noise, and the 100% solid surface mount can ensure the reliability of the electronic products with long service life. This induction sealing machine is suitable for the sealing of flat cap with screw thread for glass bottlesand non-metal bottles.