Looking for an efficient way to keep your hydroponic system clean and organized? Check out the 25 Pack Plant Spacer Kit for Hydroponic Growing System. Made of high-quality ABS plastics, these square plant spacers are sturdy, reusable, safe, and non-toxic. Compatible with various hydroponic systems, these accessories are perfect for sealing off holes and blocking unwanted lighting. Say goodbye to messy systems and hello to a cleaner, neater hydroponic setup!