Product Name: Soldering Iron Tip Total Length: 51mm/ 2 inch; Tip Part Length: 25mm/ 0.97 inch Shank Diameter: 6.5mm/ 0.25 inch Hole Inside Dia: 4mm/ 0.157 inch Point Dia.: 0.8mm/ 0.031 inch Model: 900M-T-LI Design: Point Tip Material: Metal Color: Silver Tone Weight: 140g It has advantage of lasting and not easily oxidate, easy to install and use. A great replacement tip for your standard soldering iron. Notice: To maintain the performance of a soldering iron tip, a simple maintenance procedure is recommended: 1. Operate at the lowest possible temperature (800 Fahrenheit Degrees (427 Celsius) or lower. Operating at which is one of the major causes of detinning. 2. For tip wiping: use only (-free) pure cellulose sponges; wet to the touch. 3. Add rosin core solder of adequate diameter to the working end of the tip regularly. Package Contents: 25 x Soldering Iron Tip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.