Fast Heating: Utilizes a spiral heating element for rapid heat-up, shrinking bottles in approximately 2-3 seconds. Safe Design: Constructed without paint to prevent melting or damage under high-temperature operat. Digital Display: Includes a clear interface showing set and actual temperatures for easy monitoring and control. Wide Compatibility: Designed with a 2.75-inch heating hole suitable for most bottles and compatible with common heat-shrinkable cap materials. Service: We are very sorry for the shopping experience you have experienced. If you have any problems with the goods you received, please contact us and we will serve you 24 hours a day.