"The Book" Pick Cases are for our friends who have everything - and now need a place to put it. We use Tough high quality 1000 denier nylon for the outer cover and the inner case pages. The pages and inner covers have heavy duty elastic pockets. The cover has a heavy foam board liner, and the inner pages use a firmer flexible plastic sheet for added stability. Heavy duty double ended zippers on the outer case, and the full hem captures closed cell foam panels which conform to your tools and hold them securely. The elastic pockets in the cover and pages are stitched into various sized segments for your ease of arranging your tools.