I will show you what to purchase in this video in order to make a 60mm cup work with the Harbor Freight Pneumatic Dent Puller, for pulling small hail size dents...
FIRSTINFO 60mm Pad for our Air Hose Suction Dent Puller Remove Tool https://www.amazon.com/dp/B00YF7Z6KI/...
https://www.lowes.com/pd/Southwire1...