The synthetic reed by Vandoren: VK is a synthetic reed made of a composite material specially developed by Vandoren. It is the result of 7 years of research. This composite material does not imitate the structure of the reed. It reproduces the essential physical characteristics of the reed to obtain the same acoustic behavior. Totally new! The VK reed is completely new, both in terms of the material of which it is made and the method of obtaining the material, and is covered by an international patent. The VK reed, and the material of which it is made, are produced in France in Bormes-Les-Mimosas. These reeds are 100% recyclable. 6 strengths available. There are six Vandoren VK strengths available. All strengths fall between 2.5-3.5 traditional reed strength. The VK strengths correspond to subdivisions by thirds of the usual half strengths The VK reeds strengths corresponds to sixths of cane reed strength The VK reed is currently only available for Clarinet. Perfectly safe: The VK reeds comply with the toy standard, chemical part, EU Directive 2009/48/EC, Annex II – Part III. The material is also hypoallergenic. Anti-counterfeiting identification: Vandoren VK reeds are a quality product with a worldwide reputation. Each of our VK reeds is identified using a unique code such as xxx – xxx. Check it online on our dedicated website.