Multi-wave Oscillator Technology: The MWO polarizing disc is based on a multi-wave oscillator, which, in combination with a bipolar Tesla coil, revolutionized the treatment methods of the time. Size: 5 pieces/lot. 3 options: 12 circles of 5 cm / 24 circles of 5 cm / 24 circles of 10cm. diameter: 5 cm/2 inches, thickness: 1.6 mm/0.06 inches. Material: Our energy disc consists of a copper gold-plated layer coil and a resin fibreglass substrate. It is a passive antenna that can be operated without power supply. Natural Energy Harmony: Inspired by groundbreaking research, these real gold-plated products convert negative vibrations into positive healing energy. Multi-purpose: Carefully made, durable and effective, suitable for mobile phones, water bottles, plants, etc., increases vitality and promotes health. A thoughtful and unique gift for your loved ones.