Use all year around. Bubble Tree Original Multi-Packs 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 4 aluminum bubble bottles filled with eco-friendly superior bubble solution that can be refilled, refused and recycled. 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!