grateful gnome - hummingbird feeders - rubber gasket seal replacement - replacement for all glass hummingbird feeders - only fits feeders grateful gnome <b>about grateful gnome</b>:<p>grateful gnome, is the original hand blown glass hummingbird feeder company on amazon! our brands are of hand-blown molded glass art . our collective team is highly talented and have over 30 years of experience making glass<p><b>measurements</b><br>diameter 4.13 in/10.5 cm.<p><b>installation steps</b><br>- unscrew the base counterclockwise</br><br>- remove the old sealing ring from the plastic base</br><br>- install the new sealing ring</br><p>includes<br>- 3 rubber sealing rings</br><p><b>attention</b><p>this product is the original replacement rubber seal gasket ring for our grateful gnome hummingbird feeders. it is compatible with all grateful gnome hand-blown glass hummingbird feeders as well as our imitation competitors out there.