Palm Defender inserts are:

• Readily replaceable
• World's smallest aerosol cans
• Seamless aluminum
• Impact extruded
• Precision spring valve
• Extra long femule
• Gasket sealed
• Horizontal discharge
• Cone-shaped dispersion
• Laser engraved expiration date

Available in single, twin-pack, or mixed twin pack - select Heat for duty and Test (Inert) for training.