PetSafe NanoBark™ Collar Size:Fits neck sizes 6-13 inches 8 times more flexible than

8 times more flexible than cut gaskets

1/4" x 28 national fine thread 1" hexagon die

Light and easy to handle compressed format

Simple "plug-it-in-to-run" operation

10 amp motor produces 0-4200 no-load RPM

PetSafe NanoBark™ Collar Size:Fits neck sizes 6-13 inches 8 times more flexible thanCollar Specialty One of our smallest bark collars! Adjustable Collar Fits neck sizes 6 13 inches Stimulation Type Static Stimulation Levels 10 levels Recommended Pet Age 6 months & older Collar Weight 1. 4 oz Small in Size, Big in Results Small dogs pack a big personality, and now they have a bark collar to match! The NanoBark Collar is a small, low profile and lightweight bark collar. With the size and weight of your favorite smartwatch, NanoBark