Black and White Grow Lids for rockwool growing media
100% light blocking for rooting area in grow room greenhouse
Dual-sided Top Lids Square 4 x 4 inch and 6 x 6 inch
Plastic Block Covers 4'' and 6'' to Reflect Grow Light back to plants and block light from grow media so as to cause an accelerated growth in the early stages of your young plants
Rockwool Cube Caps or Coco Growing Blocks: pack of 80 for 6x6 Panda Blocking Covers and Pack of 120 for 4x4 Panda Blocking Covers
Details: Rockwool Block Cover 4 and 6 inch- Black&White grow lids to replace injection-molded plastics grow lids.
