Use all year around. Bubble Tree Original Refillable system is not just safe for the environment but safe for you too. Get rid of one time use plastic bottles. Reuse! Refill! Recycle and Share! This item features 2 Liter of eco-friendly superior bubble solution. This can also be used with our other featured product so Grab N’ Go and take this to your next celebration, event or just have fun with your family and friends! FEATURES 2 liters of Eco-friendly non-toxic superior bubble solution Enough to refill 17 - 4 fl oz Bubble Tree aluminum bottles Dispensing refill spout included on back to refill bubble bottle Original Bubble Tree™ patent pending design and systems Made from sustainable packaging that is 100% recyclable Can be used to refill other bubble toys Easy grab handle on back every of box