Extended life and high quality 900M soldering tips, up to 40,000 solder joints can be used. (Please receive the coupon code on the product page when purchasing to get a more favorable price.) Outer diameter: 1/4 (6.5mm), Inner diameter: 1/6 (4.1 mm); Materials: oxygen-free copper; Type: lead-free tip 10 different sizes and shapes: 900M-TB, 900M-TI, 900M-TK, 900M-T-1.2D, 900M-T-1.6D, 900M-T-2.4D , 900M-T-3.2D, 900M-T- 2C, 900M-T-3C, 900M-T-4C Precision ground copper tips are plated with iron, nickel and chrome. Suitable for Hakko, Radio Shack 64-053, Atten, Quick, Aoyue, Yihua, X-Tronic, Vastar, Sywon, Tabiger, SOAIY, SEALODY and other brand iron stations Specifications: Material: iron + copper Color: silver Temperature range: 200-480 Replacement for: 900M-TB, 900M-TI, 900M-TK, 900M-T-1.2D, 900M-T-1.6D, 900M-T-2.4D, 900M-T-3.2D, 900M-T-2C, 900M -T- 3C, 900M-T-4C Tip Length: 40-44mm Tip Inner Dia: 4.1mm Tip Outer Diameter: 6.5mm Shank depth: 26mm Contents: 10 * Soldering Iron Tips Note: this does not not include other things, the color is based on the first picture and the other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to the manual measurement. Please allow deviation. Thanks