About the product
- Compatible with the SureFlap Microchip Pet Door, Cat Door, DualScan Cat Door, SureFeed Microchip Pet Feeder (*serial numbers higher than 1152201 on the Cat Door)
- For use with non-microchipped pets
- Each collar tag has a unique code and weighs just 2g
- Collar tag diameter: 1"
- Each pack contains two collar tags
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