ITEM NAME:1000G Stainless Steel 304 Magnetic Polishing Needles/Pins for Magnetic Tumb A8B2 1000G Stainless Steel 304 Magnetic Polishing Needles/Pins for Magnetic Tumb A8B2 Application: mixing with water works with the rotating cup, magnetic glass for polishing Metal jewelry. Specification: 0.3mm Height: 5mm Color: Silver Material: Stainless steel Package Contents: 1 * set of Magnetic needle