Feature: *The yellow sponges have good water absorption performance, soft and comfortable, bringing you a pleasing using experience. *Our Copper Wire Cleaner Ball is made of quality brass material, which will not easily oxidation, helps remove oxides and excess solder to maintain tip life. Specification: Brand new Material:Cleaner Ball- Copper Wire, Sponge-sponge Color : as pictures shown Size(approx.): 5.1x3.5cm/2.01"x1.38" (sponge) Quantity:1Set Use for: Remove solder residue , maintain PCB components clean. Package Included: 10PCS/ 20PCS x Sponge or 1pc Copper Wire Cleaner Ball or 1pc Solder Tip Refresher Note: Please allow minor error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.