2-pack contains 2 refillable, reusable and recyclable aluminum bottles. Each is pre-filled with 4 fl oz (118.29mL) of bubble tree world's best superior eco-friendly non-toxic bubble solution. The aluminum bottle features a proprietary tamper resistant can affix with custom multi-ring bubble wands. Aluminum bottles are designed with custom graphics features designated name tag area to personalize your bottle and soft texture for a non-slip grip. Bottles are dishwasher safe. Multi-pack to be used with original refillable bubble solution systems. Bottles are made from aluminum, the easiest recyclable material. All components are recyclable. Sustainable packaging is made from recycled material and is 100% recyclable. All bubble tree products and components are manufactured in the USA.