TIG welders, you know how important a good ceramic cup is! This 5-pack from WeldingCity® gives you reliable alumina ceramic cups, model 10N45, size #10 (that's 5/8 inch). They're made to fit TIG welding torches in the 17, 18, and 26 series. Alumina ceramic handles high heat like a pro and provides excellent gas coverage for clean, oxidation-free welds. Brand new in the original packaging, never used. Having a few spares on hand is a lifesaver – if one cracks or gets dirty, just swap it out and keep welding. UPC: 608729700739. Whether you're a hobbyist, fabricator, or pro, these cups are a cost-effective way to maintain your torch performance. Don't let a worn-out cup ruin your weld bead. Stock up and weld with confidence!