Borosilicate glass self-watering bubble in the shape of a bird. INSTRUCTIONS FOR USE: After filling the bubble with cold water, it should be inserted into the soil close to the roots of the plant. Thereafter, the plant will be kept in continuous hydration for approximately two weeks (large size) or seven days (small size). Suitable for indoor plants. Not suitable for prolonged exposure to sunlight. СОСТАВ OUTER SHELL 100% glass