coils binding is better to your option

Both coils binding and comb binding are one of the most popular bnding methods in the world. 

Coils binding and comb binding looks familiar with the same binding method from the appearance. However, coils are more suitable for book binding. Below are some of its advantages.

Coils can make page turned over around 360 degrees flat when people use the books with double coils binding while comb was limited by its spine to be turnover, which is inconvenient to read or write on books for users. 

Comb binding was made of plastic material only but double wire binding was made of metal with nylon coated outside. They are more durable than plastic ones. In addition, double wire will protect books from being destroyed further.  

Coils binding will make books look more pleasing and elegant because of human's aesthetic, In a word, it is a good choice.