We all have had plastic items break & my most annoying one lately was the end of the hot metal lever on my curling iron. The plastic cracked and would fall off but you need it on to not burn your thumb. The iron works fine otherwise. So when I saw this glue I ordered it. The print is so tiny I got reading classes on & put the bottle up to a light to read. It said nothing about how to use the 2 plastic attachments. I poked a small hole in the top of the lid & put 1 of the skinny neck attachments onto the top of the bottle then cut the tip off. I squeezed the bottle until a couple small drips came out into the grooves of the broken plastic. Next I squeezed the broken plastic together real tight for 30 seconds making sure none got on my fingers. Whalaah...the plastic stuck together and now I can use my curling iron again. I sure didn't want to have to buy a new one because of a small piece of plastic. So I'm guessing the end of the attachment sealed up & I will need to cut more off for the next use until the hole is to large. When that happens I will use the 2nd attachment & hope it lasts so I can use the entire bottle of glue. They do tell you if you refrigerate the glue it will last longer. I asked my nail lady how she makes her super glue for acrylic nails last so long when mine seals up after the 1st use. She said put it in your freezer & that's where mine is now and the end doesn't seal shut inside of the lid. Just 1 use of this plastic glue already saved me the expense of buying another curling iron so now I'll be thinking of other items to save. This glue is one of those items you need yo have on hand because you will need it if not today..then it'll be tomorrow. It's worth the money.