Thank you for viewing. This is a set of 6 Wild Country Rocks. The breakdown is: 2, 3 x 2, 4, 6, and 7, for a total of 6 pieces. They are softer than stoppers, so I liked how they bit into the rock, and that's how I ended up with this set. - Quantity: 6 pieces - Material: Aluminum - Shape: Rectangular - Application: Climbing protection