Blind Jack Russell Terrier gets his own guide dog

Glenn and Buzz are two dogs up for adoption, but they're a package deal.

That's because Glenn, a Jack Russell Terrier, is blind. He gets around with the help of Buzz, a large Staffordshire Bull Terrier who acts as his guide dog.

Hannah Critchlow is a volunteer at Stray Aid, where the two are being cared for, and she says the canine companions are inseparable.

"They instantly had a bond when they came in, so we kept them together," she told ABC News. "Whenever they're separated they start crying and barking for each other."

The two were abandoned and found wandering inside a sea tunnel together in the United Kingdom. They were likely cast aside because of Glenn's condition and their age, Critchlow said. They're both thought to be about 10 years old.

The two friends need to find a special kind of home so that they can stay together and Glenn won't experience too many changes, Stray Aid explained on their Facebook page.

The good news is that they're likely to find just that. The shelter has received more than 20 calls about the duo. They're unusually popular, Critchlow said.

"They're both just so friendly, lovable and very chill," she said. "Everyone is in love with them."