Package: 20pcs tattoo cartridge needles; Wormhole Tattoo Needles are individually packed, and for disposable use only

Material: The cartridge needles made of high material PVC and stainless steel, enough healthy and durable to work

Anti-backflow: Rubber band loaded cartridges, with plastic membrane so that tattoo ink won't flow back to the tubes

Safety: Each needle cartridge is individually packed and sealed, much safer and more convenient

Compatibility: The needle edges are specially designed to catch more ink and light Grey tubes make you enjoy better needle visibility; The cartridge needles are compatible with most tattoo guns