Features 1、SELF CONTAINED THERMOSTAT: No need to adjust the temperature, internal configuration of the self contained thermostat, plug in the preheating 2 to 3 seconds can be used directly, directly use about 30 to 50 seconds. 2、ENERGY SAVING: Wax carving pen low power consumption, energy saving, high and low voltage are available, no limit, easy to use, safe and reliable. 3、BATTERY POWERED: Thread burning tool ironing wire carving without charging, directly into the AA battery can be used. 4、WIDE USE RANGE: Thread pen can be used in a wide range, all fabrics, fabrics and other flat materials can be used, suitable for DIY. 5、ALUMINUM ALLOY: The casing is made of aluminum alloy to prevent high temperature extension, more convenient to apply. Specification Item Type: Burning Thread Pen Material: Aluminum Alloy Voltage: 1.5V Battery Type: AA Batteries x 1 Lithium Ion (Battery Not Included) Product Use: Burning Polyester Thread (Not Suitable for Cotton and Linen Thread), Wood Board Stamping, Wax Mold Carving Size: Approx. 132 x 20mm / 5.2 x 0.8in Package List 1 x Burning Thread Pen (Battery Not Included)