Effortless Creation: Our Fibonacci Coil Winding Jig offers a simple and efficient solution for crafting Fibonacci coil copper antennas, empowering you to explore the world of electroculture gardening. Two Size : Choose between two sizes - Size and Small Size - to suit projects and customization needs. Both winding jig are suitable for 11-22 gauge copper wire. Premium Quality: Crafted from high-quality materials, our jig ensures durability and , ensures for repeated use across multiple projects. Enhance Your Gardening: Create precise and standardized electroculture gardening copper antenna Fibonacci coils effortlessly, enhancing the growth and vitality of your plants in electroculture gardening projects. Helpful Hints: Use smaller gauge wire, the higher the number the smaller the wire diameter. Smaller wire will bend easier but will not be as stiff. 12 - 18ga. is a good all around size for making electroculture Color: White Material: plastic Package Contents: 2 x Fibonacci Coil Winding Jig ( size 10.3 x 7.5cm, small size 6.3 x 3.5cm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.