Pressing sheet measures 18x22 and will fit most heat presses to size. 

The sheet is used to press your transfers for a second press.  No more parchment paper or Teflon sheet. 

Utilizing the sheet gives a more matte finish to your transfers and the texture on the mat also bonds the transfer to the fabric giving it more durability on the garment. 

They are reusable and never will go "bad" 

Disclaimer: They do absorb heat and they will get hot to the touch so please be careful when you are taking it off of your press after your second press.