From the pattern description:

The perfect gift for your favorite chef! These checkerboard pot holders are knitted using the intarsia technique and then felted in the washing machine to make them good and sturdy.

Size:

Before felting: Approximately 11x131/2 inches (28x34cm)
After felting: Approximately 8x81/2 inches (20x21.5cm)

Materials needed:

• 100% wool worsted weight yarn, about 121 yards (111m) each in 2 colors (makes 2 pot holders)
• US size 8 (5mm) straight; US size 9 (5.5mm) double-pointed, set of 2
• Tapestry needle