Sample kit Large contains lengths 200, 300, 400, 600 mm (10 pieces each). Sample kit Small Contains 200 mm and 300 mm (10 pieces each). Please note that we are producing FibreStrap in lengths from 200mm to 780 mm. If you need to test a specific length that isn’t included in our sample kits, please order the sample kit and send us your additional need at team@fibrestrap.com