?100% QUALITY ASSURANCE?We are very confident in the quality of this foam cutting tool, and provide warranty or refund for it. Please feel free to reach us if you have any questions about your purchase. We will solve your problem within 24 hours. ?WIDELY USE?This hot wire foam cutter can be applied on kinds of materials, such as foam board, foam block, EPP, KT board, EPS and so on, ideal for foam carving, commercial artwork development, complex and small font design in advertisement (such as letters), art piece creation, DIY craft projects, etc. ?5 DIFFERENT LENGTHS OPTIONAL?This styrofoam cutter designed with 5 different lengths optional, includes 6.5cm/2.6in, 15.8cm/6.2in, 10cm/3.9in, 20cm/7.9in and 26cm/10.2in; Shorter needles are ideal for detailed carving or sculpting, while longer needles are suitable for cutting. ?EASY TO USE?This hot knife foam cutter heats up quickly, very convenient to use. It is designed to easily cut materials such as styrofoam. Note: Do not touch any hot surfaces. The tips will become very hot during operation; The power adapter is NOT included. ?CLEAN & SMOOTH CUTTING?This hot wire cutter can cut the foam or styrofoam smooth and fast, seals the edges clean, and leaves no debris. You can cut the form board or foam block from any angle and craft into your desired shape. Note: The adapter can be used for 15v 2A of EU standard and 12v 3A of US standard.