Original HTV Cooling Block is a Must-Have Crafting Tool Because it Lets You Cool Your Vinyl at Super-Fast. Precision Craft Vinyl Tools, Cooling Heat Transfer Vinyl. Fast Cooling Vinyl

Great for speeding up the cooling process with heat transfer vinyl. Makes layering so much faster. I was hesitant to buy as there is no advertised size listed and nothing regarding dimensions in the reviews. Nice size hunk of stone for an appropriate price. As the title states, the product dimensions are 4 inches by 4 inches and about .75 inches for thickness.

I didn't know I needed this in my life until I bought it. Works great when you're layering htv and want to cool it down quickly. I use it all the time now and I love it

If you use a heat press this is a must have! This single handedly upped our heat press/htv game. If you are heat pressing transfers or HTV, I highly recommend one of these.

Love this tool- helps cool down your liner for peeling and I think the additional weight and pressure help the vinyl stick. It’s a great to.

Totally cools the vinyl, and quickly too! Love it!

As soon as these arrives in the mail, my sister lost it. They worked for exactly what she needed them for. 😃(She used them to make designs on shirts.)

Idk if it would really work but it does work extremely well. No more waiting for my projects to cool over time. I’ve used this with every ironing project that needs to cool and it’s worked with all material types.

I put mine in the refrigerator and it stays cold for awhile and cools down the shirt.