Features 1) Pack of 2 batteries. 2) The Perimeter Brand Invisible Fence Replacement Battery is the best solution for keeping your Invisible Fence Brand system operating safely. 3) Compatible with R21, R22, or R51. 4) Less Expensive than the original.
Specification Binding : Misc. Label : Pet Stop Manufacturer : Pet Stop PackageDimensions_Weight : 0.02 pounds PackageDimensions : L:3.25 X W:2.50 X H:0.70 ProductGroup : Pet Products ProductTypeName : PET_SUPPLIES Publisher : Pet Stop Studio : Pet Stop Title : Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery 2PK by Pet Stop