This pack includes 50 black disposable tattoo pen holder sleeves, ensuring a hygienic and efficient workspace for each client. The sleeves are water and dust resistant, providing additional protection for your tattoo clip cores and ensuring a smooth and precise application. These disposable sleeves are designed to fit most PMU tattoo pen holders, providing a universal solution for your daily PMU needs. Upgrade your PMU setup with these convenient and practical sleeves, designed to enhance your workflow and maintain a clean and professional environment.