• Increases resting space per cage
• Stainless steel is easily cleaned and durable
• No replacement or disposal issues
• Less expensive over time than disposable and plastic devices
• Allows nursing mother rats a place of refuge from pups
• Seems to have a calming effect on the rats
• Easy to install and remove
• Designed by a researcher who is genuinely concerned with the welfare of rats and is aware of the concerns of researchers and welfare proponents

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