Our pond floats are available in three sizes and over 20 different colors. They are all tested and guaranteed to float and float right side up before leaving our studio. The glass is made extra thick so they are less likely to crack or break when jostled around in the garden. They can be left outside year round but do not leave them in water that may freeze in the winter. These are fun garden accents that can go anywhere in the garden and were featured on the June 2009 cover of Better Homes and Gardens magazine.