Dual-temperature glue gun is ideal for crafts, floral & do-it-yourself projects. A high / low switch lets you customize application according to the materials you're using. High temperature allows better bonding to metals, plastics & ceramic. Use low temperature for bonding delicate material such as lace, foil ribbon, floral form & lightweight fabric. 40-watt glue gun provides a safer way of gluing with operating temperature of 250 degrees & 380 degrees in Fahrenheit. Use 7/16" diameter glue sticks to refill the full-size glue gun.