Jacks Whirlpool Boots have over 50 years of reliability behind these effective therapeutic boots. The industrial 110-volt compressor produces aeration around the coronet that massages, reduces swelling and aids in injury recovery. Quiet running for high-strung animals. The whirlpool boots are soft vinyl, built for years of use, yet soft so they will not harm the leg. Adjustable over straps & clips are included to secure the boots whilst in use.