Yes, they are refillable! To refill the bottle, simply pull out the top spray nozzle from the bottle, refill the bottle with sprayable alcohol, and re-plug the nozzle back to bottle.

24-Hour Defense: Rinse-free and disposable hand sanitizer that kills 99.99% of most common germs.  Contains 75% alcohol and is clinically proven to maintain skin health.  Refreshing alcohol spray fights germs and keeps skin smooth. Contains triple action moisturizing effect and 2X sanitizing strength. The most essential item of our time! Use for overall skin health.  Can also be used to disinfect and clean automotive interior, mobile phones and other surfaces. MADE IN USA.

• Made in the USA. 75% alcohol based hand sanitizer. Kills more than 99.99% of germs within 15 seconds. Non-toxic, non-irritating formula.
• Travel Size.  20ml (1 ounce) per bottle.  Easily accessible mist sprayer.
• No hand washing, rinsing or drying required prior to or after use. 
• Perfect solution for hand hygiene to use at home, hospitals, schools, shared office spaces, etc. 
• A must-have in your carrying bag no matter where you are. On-the-go sized for your purse, backpack, or pockets.