CALIDAKA 9-Piece Jigsaw Massage Adapter Set - Percussion Massage Gun Attachments for Deep Tissue, Trigger Point & Soft Tissue Therapy - Includes Massage Balls & Bits for Pain Relief & Muscle Recovery - Perfect for Athletes, Physical Therapy & Home Use

Bought previous brand. They are all the same. Fits my 20v dewalt well - after some grinding of the tongue. It won’t allow full insertion unless you grind it down to fit. It kept on falling out and so I compared the tongue to my saw blade and saw the reason why. Fixed it real quick with my grinder and it’s been in service for the past 2yrs 5 days a week.Now onto the new item (this item): Keep in mind that the flat sides are a lot better but what I received were round sides. No big deal. I like my flat side version a lot better but Amazon is Amazon so I won’t complain about the small things. Another note is I’m glad it came with two b/c I boogered up the first one. I used my bandsaw this round instead of grinder wheel. I know these round ones are more durable but for what I use it for - both flat and round are equal.I bought this item after the ball fell out (lots of heat) of the old setup. I was working the quads and hams and with extended use, ball melted off the steel anchor. I’d imagine it will happen again. I’m not using the ball anymore. I like the flat attachment.I had A broken massager wand I bought on Groupon for $25. It broke but I liked how the attachments attached to the tips so I married them two together. After I married the two together - I found attachments for adult toys smh (surprise surprise lol).Only time will tell how long it will last b/c it’s held by a single 1/4 bolt.