We are given all the technical specifications by our suppliers and we endeavor to list as much information as possible to help you make your purchase decision. Although our in-house team are keen followers of party & festival crafts, we may not always have the expertise to answer very detailed and technical questions we are asked by our buyers. If we do have the information you required, we will respond as soon as possible. Otherwise, may we suggest websites that provide technical information on a wide range of products which will better assist your purchase decision.