8 Pieces Spare Silicone Sealant Nozzles Silicone Tube Nozzle Caulk Caps Resealable Mastic Cartridge Spare Nozzles Screw Covers Sealant Tool

I checked on arrival that they fit on many brands of sealant and adhesive tubes. I needed a little clear sealant in my bathroom, so I tested one, perfect. These types of nozzles are thrown away after the next use, they are not meant for multiple uses. If you have finished with the one that came with the tube, I get a little thin piece of plastic or cling film and put it across the cut tube end to keep it airtight, screw on the full nozzle you just used and put away. when you need it again, remove the full nozzle and cling film and check the inside of the tube is wet inside the tube, if not, get something to poke in and see if it is wet half an inch in. attach the replacement nozzle and away you go. The red caps are not necessary really because unless you are willing to get messy and clear each one out with long implements like 4-inch screws to go in the bin after, which is a messy task. Just use them as one-use nozzles, for the price they are reasonable value. I will be buying again if needed.

Used a couple and seem to be working

Does exactly what it's intended for. With regards to some reviews the red cap just twists on and stays in place, no thread on nozzle itself but not needed as the red cap twists and seals tight.

Ensures I can always use up what's left in a Tube by replacing a clean nozzle each time I want to use more sealant

The redcaps had an internal thread but not a thread on the tube nozzle, therefor only a pressure fit which easly knocks off

You always have mastic and the like left in your cylinder when doing DIY jobs. You come to use it again and it's all dried out in the nozzle and you need to get a new one. Not any more - simply take off the old nozzle and screw on one of these very cheap ones and get on with the job in hand!

No issues with this product. They arrived simply packaged and easily screw on to any tubing product you like. Saves having to keep going out and buying new tubes of glue or silicon or whatever you may use.My only slight issue is that the red caps are pointless as they do not secure whatsoever and just fall off. Despite this still a useful product.

Wish I had bought this item years ago, saves any waste , price about right. Thanks. Graham