PEL Manufacturing has been supplying US made spiral coils for bookbinding, since 1934. We do not resell low quality imports, we manufacture our spiral coils in our Southern California location. PEL Manufacturing strives for customer satisfaction, and we do so by providing the highest quality product, the biggest selection, and the fastest turn-around time. You will not find a larger selection of spiral coils, anywhere, this we guarantee. Some of our advantages over other vendors; Our products are made in the USA, and must adhere to strict standards 10 different hole spacings (Pitches) 22 different material gauges (material thickness) 25 spiral forming machines Products in plastic, wire and aluminum Largest coils on the market (up to 4.5) Customized solutions Give us a call, and let our almost 100 years of experience work for you