InstaTrim Corner & End Caps - Six Black 3/4" Wide Caulk Strip Corner and End Pieces - Finishing Caps for Corners & Exposed Ends - Paintable

Good enough. Nothing to write home about.

As indicated above, these look very nice and solve the "what to do in the corner" problem. However, as stated in other reviews, their downside is that they have no glue or anything else to make them stick. For the corner pieces, I cut out a little square of mounting tape and attached them that way. The end caps are too small for that and hopefully will stay in place by themselves.

These add an extra touch to your trim project. Wish there were more buying options.

These are great if you really can’t cut the normal instatrim properly, but honestly, it was my first time using it and I messed up slightly and the corners I did myself still look better than the two corners I tried putting these on. If you’re really struggling or just feeling lazy, this will be alright, but they don’t fit perfectly with the trim. From far away, they’re great, but otherwise it’s very clear what they are. I won’t use them again, but I super glued the couple I did try to use because they don’t have any adhesive of their own to stay in place, so I can’t return them.

Well, well. It may be operator error: I’m not the hippest about using home repair stuff, but I’m really good at reading and following directions. I could not get these to work for me and found it far easier to cut the caulk tape at an angle to work in inner and outer corners.