100piece mixed cartridge needle set designed for professional tattoo work. Durable PC material shell and quality stainless steel needles provide consistent performance, while multiple configurations allow quick changes during a session. Key benefits Reliable construction: durable polycarbonate shell and precisionformed stainless steel needles with sharp points and tidy alignment for stable, predictable needle action. Needle stability and control: onepiece needle construction and closemouthed cartridge tips help the needle strike remain steady, improving line consistency and operator control. Fast rebound and smooth flow: needles designed for quick rebound reduce drag, while round liner cartridges use a funnelshaped design to hold more ink and provide a uniform discharge without ink jetting. Easy to fill and change: cartridges accept color by dipping the needle into ink or by filling through the cartridge , and are quick to set up and swap during tattooing. Specifications Kit quantity: 100 pieces total Mixed cartridge needle sizes and types (each size 10 pieces): 1203RL 1205RL 1207RL 1209RL 1211RL 1205RS 1207RS 1205M1 1207M1 1209M1 Practical applications Precision lining and fine details: small round liners deliver tight, clean lines for lettering and intricate work. Color packing and shading: larger liners and magnum variants hold more ink and provide smooth, even coverage for filling and gradients. Tattoo sessions that require frequent configuration changes: quick cartridge swaps let artists switch needle types and sizes without interrupting workflow. What makes this set useful Broad size range covers common liner, round shader, and magnum needs in one kit. Design features focus on consistent ink flow and stable needle performance to support reliable results across different styles and techniques. Packaged as a mixed set to provide flexibility during sessions without needing separate purchases for each needle type. This description reflects the models and functions included in the kit.