Using Worbla’s Finest Art is easy. First, heat the sheet to 90°C or 195°F. You can use a heat gun or an oven. Once it's heated, it will become self - adhesive and soft enough to shape by hand. Mold it into the cosplay armor or props you want. Be careful when handling the heated sheet to avoid burns. When it cools down, it will turn rigid. As for maintenance, keep it in a cool, dry place. If you notice any color variation, don't worry as it's normal and won't impact the product's performance. Also, remember that this product doesn't qualify for free shipping, so expect extra shipping fees.