Well, there you have it from the forum expert. No need for me to tell you (but I will) I have pulled so many 'dings' with mine on my families' & customers' vehicles I've had to buy more glue sticks several times now. He did get the price right, though, $20 is what I paid for my original "Ding King".
BTW, if you buy one, be aware some of the copies have a plastic bridge piece that is not as durable as the 'original', which has an aluminum bridge.
I'm sure he has much more experience than I have getting dents out. I only own 4 & 10 ton porta-powers, about 16 body hammers & a drawer full of body dollies. I've raced stock cars for years & beat the dents out of more panels than I could keep count of, & last year beat the right rear quarter panel out on my wifes' totaled car so well the body shop that did the paint work did it for $200 less than their estimate & offered me a job. I also know how to pop small dents with a heat gun & dry ice.
Maybe Bob can just loan you his. I still use mine every couple of months to save someone money over their body shop estimate.
My father had a great definition of expert, since he often had to deal with them, too. Ex = has been & spurt = drip under pressure.