The streamlined design and sturdiness of our Aluminum RPG cartridge grip now reintroduced as a disposable! - Ergonomic medical grade Anti-Slip rubber grip - Tested cartridge locking system ensures needles fasten securely in place - Flushes with all cartridges - Now compatible with 3mm Built-In Drive Bar machines such as Inkjecta, Hawk, and SwashDrive (When using the screw-on vise adapter.) - New Neon Green color - Packaged 24 pieces per box - Individually blister packed and EO Gas Sterilized - Each grip sealed with its own 3mm disposable drive bar and silicone grommet