Hydrofarm HGCOV6 6 Inch Rockwool Dual Sided Block Cover for Grow Media Box, Grodan Block, Seed Starter, Greenhouse, and Gardening Supplies, 40 Pack

Dimensions (Overall): 6 inches (L), 6 inches (W)
Weight: .33 pounds
Coverage Area: For Small Area Spot Treatments
• Protects plants from pests, wind, and more
• Reflects light to plant leaves to aid in further growth
• Blocks light from soil and media underneath cover
• Eliminates algae and mildew growth
• Works well with Grodan blocks
Get your seeds and plants started off right with this 40-pack of Hydrofarm HGCOV6 6-inch Rockwool Block Covers. Constructed with a split center and small opening for stems, these protectors are easy to set around seedlings or cuttings, and protect seeds while they grow into seedlings. These covers reflect light to plant leaves where they need it most, block light from media underneath, and eliminate algae and mildew growth. This 6-inch size also works great with Grodan blocks, providing you with flexibility of use and added convenience. Get extra use out of the 40 covers in this pack with the dual-sided design. Enjoy watching your plants grow and flourish with this 40-pack of Hydrofarm HGCOV6 6 Inch Rockwool Dual Sided Block Covers, providing the light plants need while offering protection from pests, wind, and more.