These special grommets presents innovative and revolutionary features and offer clear advantages: with a single product you can obtain strain relief. They are waterproof and very easy to use: through a simple pressure and without the need of screws. Space-saving and pleasant aesthetic impact, is flexible enough to allow different thicknesses and shorter installation times compared to standard cable glands. They can therefore be considered as a viable alternative to cable glands. Once mounted on the wall, is guaranteed a safe and stable anchoring in both directions, and they can be removed only intentionally. <