Product - Cartridge Disposable Tubes Brand - Ultra Tubes® Sterilized - Yes Grip size available - 1" inch grip handle. Special Note - These tube can be used on All Coil & Rotary Machines except Cheyenne Motors. Plungers included- Your machine may need a plunger in order for these tubes to work, Each tube comes with a plunger with rubber grommet inside the sterilized packaging. Ultra Tube® Rubber Gripped Disposable Tube come with a semi-soft solid rubber gripped handle.