Single Small Hummingbird Feeder Stopper that includes a ball bearing. Each stopper has a conical shape. **please note the HBF-3 is a slightly different size from the HBF-1516BB. We can no longer get that stopper size. The HBF-6.5 is the same as our old SKU HBF-114.
Dimensions:
| SKU | Size | millimeter | fraction |
| HBF-3 | Small |
24mm top x 18mm |
15/16" top x 45/64" bottom |
| HBF-4 | Medium | 26mm top x 20mm bottom | 1-1/32" top x 25/32" bottom |
| HBF-6.5 | Large | 34mm top x 27mm bottom | 1-11/32" top x 1-1/16" bottom |
Glass tube diameter is 1/4" and 2-1/2" long. Overall length 3-1/4". Stopper length is 25mm or 63/64".
TIP: Always fill your feeder completely full with cool nectar. Insert the stopper and invert quickly to avoid any air entering the feeder. Tube feeders operate on a vacuum principle. Only if the feeder is initially filled completely full will the vacuum form!
Always measure the opening on your feeder before ordering. Every feeder is different. We cannot pay for return shipping.
Measure the inside of the opening in your feeder. That measurement will fall in between the top and bottom measurements of the correctly sized stopper.
Ships in: 1 to 3 days
Ships from: Maryland
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