"These plugs are identical to the Fischer S8 plugs (but cheaper) and suit almost any non-specialist purpose.
The solid lower half splits in two, so that the outer teeth grip the hole firmly with a variety of screw sizes. The wings and fins stop them spinning as you start a screw. They work especially well with TurboGold or TurboUltra screws.
Top Tip: They come in 3 sizes, but the correct drill size is embossed on the side of each one."
"I have used this type of wall plug successfully for years. They are easy to use. The anti rotation arms hold them firmly in the drill hole whilst fixing. With careful use they can be pushed through the fixing hole of the object being attached to the wall which saves on alignment issues. When fitted correctly they have proved to be totally reliable for interior and exterior jobs."
"An excellent high quality plug which is good in a wide range of materials and is stronger and more robust that many. "Wings" help to locate item snugly and stop that annoying trait of cheap plug to spin round in the hole when you try to screw into them"
"I have purchased these before and found them reliable and cheap. They are far better than the plugs you get with new items, such a light fittings. I normally discard the supplied plugs and use these ones. They are fine for most jobs unless you are doing something a little more specialist, or one of those jobs where you need a particularly strong grip."