Using these jello shot syringes is super easy. Just prepare your jello mixture and fill the syringes up to the 2oz capacity mark. They're great for parties or just a fun treat at home. Remember, these syringes are not microwave or dishwasher safe. To keep them in good condition, after use, simply rinse them out with cold water and let them air - dry. Since they're biodegradable, you can feel good about your environmental impact when disposing of them.