This is not a hemisphere, but a lens like shape.
Temperature safe from -40°F to +266°F (-40℃ to +130℃).
# The mold can not be used in oven & microwave.
# Refrigerator & freezer safe.
Note
1.The mold should be washed before first use
2.Do not use in gas and fire.
3.Do not use knives or other sharp tolls on molds and avoid stress, pull.