Comprehensive Polishing Kit: This set includes 4 bags of polishing grits—#Step 1, #Step 2, #Step 3, and #Step 4—providing everything you need for a complete rock tumbling process. Variety of Rough Rocks: Comes with 9 different types of rough rocks, perfect for achieving diverse and stunning results with your rock tumbler. Versatile Compatibility: Suitable for use with any brand or type of rock tumbler on the market, ensuring flexibility and convenience for all users. Easy to Use: Designed to be user-friendly, this kit is ideal for both beginners and experienced rock tumblers, making your polishing and tumbling experience smooth and enjoyable. Quality Assurance: If you encounter any issues with your order, please contact our customer service team. We are committed to providing you with a satisfactory solution.