Kester 245 No-Clean Solder 63/37 .020" 3/4oz Dispense-Pak Specially packed from Genuine Kester 24-6337-8807 solder 3/4-ounce Dispense Pak contains approx 48 feet of solder! 67/37 Tin/Lead is most common for electronics work .020" Diameter is most common for fine-pitch electronics work Low Residue No-Clean flux