A Sampler of 5 pieces each of 3 different oboe gouges. The range of gouges is based on your chosen cane diameter. We offer this sampler for 10.25, 10.5, or 10.75 mm diameters only. All of our cane varieties are available for this sampler. Your optimum gouge is based on many factors so this sampler is the best way to zero in on your best reedmaking setup.