The rubber band control the stability of the needle during the tattooing process, so that a better elastic rubber band can control the needle better, not shaking. The hight quality gromment can keep needle seady, and the black O-rings guaranteed the spring of the machine more smooth. Features: 1. Made of high quality material, which is durable, practical and portable. 2. Can be used to replace the broken parts of the tattoo machine. 3. The rubber band control the stability of the needle during the tattooing process. 4. The black O-rings guaranteed the spring of the machine more smooth. 5. Suitable for professional tattoo salon use. 6. Contains a tattoo handle, a lots of rubber rings and O-rings, meet your different demands. Specification: Item Type: Tattoo Accessories Material: Alloy + Plastic + Rubber Package Size: 17.5 * 11.0 * 3.0cm / 6.9 * 4.3 * 1.2inch Weight: Approx. 206g Package List: 1 * Silver Tattoo Handle 2 * 2.5mm Allen Wrench 1 * 100Pcs of Random Color Tattoo Pad 1 * 100Pcs of Black O-rings 1 * 100Pcs of Random Tattoo Rubber Ring 1 * 5Pcs of Tattoo Needle Tube Brush 1 * 2Pcs of 4 Grid Small Storage Box 1 * Large Storage Box Note: The quantity may be biased, please understand.