Aspect ratio samplers are perfect for playing with a specific weave. Pictures can give some idea about the various size possibilities for a given weave, but there’s nothing quite like holding a sample in your own hand. (Or being able to hand a range of samples to your customers, to help them choose their favorite!) And if you’re planning to make a graduated chain, then the aspect ratio sampler pack is your new best friend! *grin*
If you’re not sure what “aspect ratio” means, I recommend a quick detour to my blog post on the subject.