After doing a lot of research, I purchased this tape in lieu of the pre-cut strips to re-assemble my Apple iMac 5k 27 inch as I knew I'd be going back in for multiple upgrades and system configuration changes. This tape has far exceeded my expectations as it has now become my 'go to' tape for everything. To date I've switched out 3 iMac LCD displays with this tape. All doing great. (You have to make sure to align the panel perfectly or else you'll get some lifting. If the tape is applied throughout, there is no risk of the panel falling down but I recommend going back in and redoing the tape until you get a perfect seal. After each install, I would apply this tape and then use clear tape to secure the LCD for a few days. Upon removal of the clear tape, the seal should be nice and tight.)In using it for its intended use of holding my Retina LCD panel up, I can assure you it's been over two months and I'm not crying over a broken screen. The width of this tape is thicker than what's needed so you can either trim it down or fold it. Either method works. I believe tape that is roughly 5-6MM would be perfect, but you can make this work.As the other reviews have stated, this is in fact 3m tape and is really strong and tacky. I've now used it to tape my USB hub to the base of my iMac and it stays put, even after tugging on a stubborn usb stick. I had tried other double stick tape to no avail and was ecstatic this worked. I've found that this tape works better if you heat it up after applying it. Living in a hot town (Phoenix) I have the luxury of having this done naturally.You'll find many different uses for this tape so it's handy to have around. Great purchase that will go a long way as 50m lasts a long time!