A mix of a metal rake and crystal cat litter lets the PetSafe ScoopFree to outperform other raking containers. Although other self-cleaning containers with rakes tended to jam up and miss clumps, the PetSafe ScoopFree worked continually, scraping up solids and carrying them into a squander compartment. ✔️ Screening NOTES: https://stimulatingcatgadgets86272.theblogfairy.com/35515065/petkit-review-an-overview