Spiral coils or plastic coils are also known as binding coils, plastic coil binding supplies and GBC Color Coil spines. Spiral binding coils allow pages to lay flat and offer 360 degree rotation. Pair your spiral coil spines with our attractive binding covers to help your presentations stand out. Our plastic coil binding supplies are available in 50 popular colors with spiral coil sizes up to 50mm. For more information, compare our 7 binding styles, including spiral coils.