It's made with material called silicone carbide, which is used to shape and clean diamonds, so it's high aggressive. Silicone carbide also leaves a nice polish on the surface after cleaning..
The pad is made with an open structure so grease and oil gets washed out easy, and it's also heat resistant up to 130 degrees which means you can clean straight after cooking.
It's a 16cm x 12cm dimensions, which is the professional cleaning size, the largest size that will fit in a normal hand and allows you to clean a large surface quickly.
The hole is where the easy hang suction hook goes through for storage.
In the start pack you get one Easy Hang Holder and three pads, and in the refill pack you receive five pads.