(3 Strips of 15) 50 per case. Grodan Miniblocks 1.5"x1.5"x1.5 Case of 2250. Now your cuttings are easy to arrange. Maximize your grow area with Grodan Starter Mini-Blocks. These Mini-Blocks are designed to sit in a tray (flat) without support and are individually wrapped in white plastic to minimize algae growth. Starting seeds and cuttings becomes easier than ever! You can simply remove the plastic wrapping and transplant into any loose media such as Growcubes or coconut fiber. Another option is to leave the wrapping on and set on top of a larger Gro-block. Packed in easy tear away strips, labeled with instructions. Great for professionals or hobbyists. Dimensions: 1.5 in x 1.5 in x 1.5 in.