Review on KnitIQ Blocking Mats For Knitting Premium Set - 9 Extra Thick Gridded Boards, 150 Rustproof T-Pins In Artisan Tin, Quality Needlework Or Crochet Bag - Pack Of 9 by Victoria Gomez

I just purchased these after looking at a lot of similar products and overall, so far, I am very pleased. I had always blocked my items on top of the ironing board or on towels on the floor, but decided these would be a good investment (a little pricey for what they are, but seem to be nice quality) Some of the reviews mentioned an odor. Being very sensitive to odors, I was concerned about that; however found almost none. If I put my nose against the blocks I can barely smell a trace of an odor, but certainly not offensive or bothersome in any way (and my nose has to be literally ON the block to smell it). Some people commented on the measurement lines. Since I plan to do more circular crochet pieces, the circular lines were important to me and some of the other sets did not have them. The blocks themselves are numbered and the grid and circle lines lined up perfectly when I assembled them properly. Unfortunately, the grid line measurements are off by a considerable amount. If you measure each grid block from the center of each line, they are exactly one inch - BUT - the lines themselves have thickness. So adding up all of the line thicknesses causes the measurements to be off. (Which is why I did not give 5 stars). To compensate, I simply used a tape measure to verify that I had the correct length and width, and used the grid as a straight line reference only (for which it was wonderful, especially compared to the ironing board top! I purchased an extra tin of pins and was very glad that I had. While the included pins would have been adequate for this particular project, I didn’t want to have to worry about it in the future. I am also very happy with the clear plastic storage case the mats came in. Overall, I am delighted with this purchase, would recommend it and would buy it again.