SPECIFICATION: Material:316 Stainless Steel Specification: Box of 20 1207RM/1209RM/1211RM/1213RM DESCRIPTION: Unique Iris Hollow Design - Precision-engineered tattoo needle cartridges with a distinctive iris-flower hollow structure for improved ink flow, faster saturation, and easier visual control during tattooing. Built-in Silicone Grip - Each tattoo cartridge features a soft, non-slip silicone finger rest to reduce fatigue, enhance stability, and deliver maximum comfort and control for long sessions. Individually Sterilized Packaging - Every tattoo needle is EO gas sterilized and individually sealed for single-use safety, ensuring strict hygiene standards and professional protection. Professional Single-Size Box (20 pcs) - Non-mixed box with 20 pieces of the same model, available in: 1207RM, 1209RM, 1211RM, 1213RM perfect for artists who need consistent performance. Universal Compatibility & Smooth Performance - These premium tattoo needle cartridges are compatible with most rotary and pen-style machines, delivering smooth ink flow, minimal vibration, and precise linework or shading.