"Super Pet Presents Crittertrail Bubble Caps 2 Pack. "" Crittertrail Bubble-Plugs are Used to Close Opened Accessory Holes on the Sides of Crittertrail Homes. Bubble Plugs can also be Attached to a 10"""" Fun-Nels Climbing Tube to Close an Opened Accessory Hole on the Roof Top of any Crittertrail Home. Bubble Plugs are Available in Four Colors and are Sold Two to a Package."" ""2.25"""" Diameter (2-Pack)"" [36356]"
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