Grow Spugne Confezione da 50, Spugne per Crescita Radici Idroponiche Compatibili con Aero Gard

GREAT HOLE-DESIGNED: The end of the plug sponges features a small hole that allows you to place your precious seeds into them to make sure the seeds won't fall off into the water. Soak the grow sponges for 5 minutes first, then place the seeds in the hole, then put the sponge in the grow basket.

eBay