ElectroCulture Copper Antenna 10 Gg 1" Spiral Induction Coil 4pc Lot Garden Tool. These are NEW, clockwise hand wound 10 AWG 99.99% soft copper induction antenna coils for use in your indoor/outdoor home electroculture garden. The clockwise hand wound design is required for gardens grown in earth's northern hemisphere. Coils have about 8-10 turns (approx. 1 inch diameter coil) with short and long tail for placement in small to medium sized potted plants. Longest coil with tails is approximately 8 inches end-to-end. Electroculture copper coils transmit energy from the air into the soil to stimulate the growth, size and yield of your plants, vegetables, herbs flowers. A bigger coil isn't always the best choice due to size the constraints of your garden. However, whether you are growing micro greens, small potted plants or rows and rows of vegetables, these coils can be stretched into longer loose spirals, up to about 14 inches tall as needed for indoor or outdoor growing. These coils are sturdy enough to be freestanding with no wooden support post required. Just put the longer end into the soil for secure placement. Please see all photos of items being shipped as they are part of the description. Shipped with USPS within 1 business day.