AdTech Hi-Temp hot glue sticks can be used in just about any high-temperature glue gun and are crystal clear - so clear you can read text through them! AdTech glue sticks are perfect for just about any craft or DIY project where strength and almost-instant curing time are desired. Non-toxic too! AdTech's Hi-Temp formula is trusted by crafters and DIYers more than any other glue stick. Use in your high-temp glue gun and expect superior results!