72 sets Rockwool Cubes for Hydroponics with Net Pots, 1in Rock Wool Planting Cubes 72 Plugs & 50 Net Cups 1.5 inch Hydroponic & 50 Article Self Watering Cotton Wick Cord for Hydroponics Supplies

this product really helped my seed germinate fast .

I have an Aerospring and these cups fit perfectly. Beyond that, one can start seeds right in the rockwool because you place the 6" rope thru the cube (or, I suppose, alongside the cube), plant your seed/s and place the cube w/ rope it in the cup. Moisten the cubes, start your pump and timer, and the seeds get plenty of water. The rope mimics a root system to draw water into the cube w/ the seeds. Start seeds right in the Aerospring. No waiting until roots exit the cubes in a tray. No more worrying about watering the tray or making sure mold isn't growing on the seedlings.In addition, the rockwool cubes are sturdy and don't fall apart easily as some products do. (The cubes that come with the Aerospring are sturdy, too. Some other rockwool products, not so much.)

I loved the set when it arrived. Started my seedlings but noticed that the net cups were slightly smaller than the net cup tray, so when placing the net cups into the holder they would slip through. The net cup was listed at 2in but was measued on my calipers to be 1.9655in (+/- .001) while the net cup tray measured 2.0615in (+/- .001). I ended up using some tape on the edges to expand the diameter of the net cup to make sure that they would not slip through. All in all still a great product along with the price. Just be aware that it might not be exactly 2in or 3in diameter net cups and might slip through.

Great.

The individual items are very small. This can be helpful in some applications and frustrating in others. It depends on how you plan to use it whether it will be helpful or not. I was able to make it work out for my application, but it required a lot more work and additional materials