Simple yet serves its purpose quite well. The shred is free from a local business and it composts quite well.
Another extremely important thing to note about the shred is that it has no mites on it. If you use straw or hay bedding you may have to purchase dusting powder for your flock. Since we switched to shred we have noted almost no mites! Amazingly simple, but prepping should not be a chore but a lifestyle towards a goal of living on less but with far more skills.