Packaged at 18 shingles (x 2 = 36 starter strips) per bundle, each IKO Leading Edge Plus starter strip shingle is perforated down the center to provide two starter strips. IKO Leading Edge Plus is made using our own quality raw materials to ensure optimum roofing quality, and is compatible with all existing IKO shingles. Installation information is printed on the package with easy-to-follow instructions. With IKO Leading Edge Plus, the majority of work is already done for you. Cut to size and perforated down the center, they're fast, easy and simple to apply.