Mr. Pen- Interlocking Blocking Mats, 12”x12”, 4 Pack, Blocking Mats for Knitting & Crochet Projects with 50 T-Pins, Knitting Blocking Mats and Pins, Crochet Blocking Board for Crocheting, BMFK04M212

Brilliant size for blocking an adult jumper, good quality with pins included

Nice. Interlocks nicely. Came with a "thank you" from seller. Nice touch. Great for small projects. Will recommend and buy from seller again.

Really happy with these blocking mats! Does the job, comes with lots of pins and is a nice sturdy mat. I've blocked a few of my crochet tapestries on them with no issues. Would recommend

These work well as blocking matts, easily fit together, are numbered and have a grid pattern to make it easier for blocking. The thickness is okay, they come with pins so you don't have to worry about buying them separately. The only issue is that for longer projects like scarves or shawls you are going to need more than four

Fast service, great product ordered extra set so they can be used on larger projects. Highly recommend

Really great blocking mats for smaller projects, comes with useful pins.

Works well when pressing knitting

Great purchase. Have never used blocking boards before but will do on all my future knitting projects. Also came with pins which was very helpful.

These Mr. Pen blocking mats are exactly what I needed for my crochet projects. The interlocking design makes it easy to set up in different shapes and sizes, and they hold together firmly while I work. The 12”x12” size is great for both small and large pieces. The included T-pins are a nice bonus—strong and sharp enough to hold my work in place without damaging the fabric. The surface of the mats is durable and grips the yarn well, making blocking smooth and hassle-free. Overall, this is a high-quality, affordable set that has made my projects look so much more polished. Highly recommend for anyone into knitting or crocheting!

Super fast delivery. Very impressed with the quality.

Amazing blocking board! Because I underestimated how big my finished crochet project was, it turned out a bit too small for it, but the interlocking edges allowed me to pin it anyway! The mat holds pins extremely well: I thought it was going to be challenging given how thin it is, but it was not an issue AT ALL. Lovely packaging and lovely store, will buy from them again 1000%

These blocking mats are excellent to use with T pins to block knitting or crochet projects. They can be put together like a puzzle if a larger blocking mat is needed. I like that the colour is quiet and doesn't interfere with the colour of the yarn project. The price is reasonable as well.

Great for blocking squares. Nice and thick. Good quality. Good size.