1. The high impedance tip is made of metal material and offers high resistance and heat tolerance. 2. At high temperatures, it resists bending, softening, oxidation, and carbon buildup. 3. Nine different tips are included for various functions, such as large-scale shading, fine detailing, and drawing consistent lines. 4. Compatible with 50-100W pyrography machines. 5. Maintains structural integrity up to 600C without bending when not heated; the heating element provides resistance to bending at temperatures up to 800C. Product Specifications Diameter: About 1mm Length: About 27-30mm Width: About 9-10mm Operating Voltage: 3-5V Temperature Range: 0-1000C (normal operating temperature) Compatible Models: LH30, LH40, LH50, LH60, LH70, LH80, LH90, LH100 Color: Silver Material: Metal Sizes: 1.5 / 2 / 2.5 / 2 / 2.5mm Package Contents: 5 x Ball Tips Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.