Application It is suitable for kids above 8 years old to polish various rocks. Specifications Color: White+Black+Grey Material: ABS, Rubber, Stainless Steel Assembly Required: Yes Mounting Type: Tabletop Power Source: Corded Power Plug Type: EU Standard Suitable Ages: Above 8 Years Old Voltage: AC 100-240V Output: 12 V/1000 mA Timing: 1/2/4 Days Gross Weight: 1.5 kg/3.31 lbs Net Weight: 1.2 kg/2.65 lbs Product Size: 15.7*20.8*17 cm/6.18*8.19*6.69 in Base Size: 14.4*20.8 cm/5.67*8.19 in Package Size: 26.5*21.5*11 cm/10.43*8.46*4.33in Package Included 1*Rock Polisher 1*Adapter 4 Bags*Polishing Grits 1 Bag*Rough Stones 9*Jewelry Findings 1*English&Chinese Manual Description Do your kids love collecting rough stones from beaches and outdoor walks? They may dream of polishing these stones into smooth keepsakes or delicate jewelry, yet lack proper tools to finish the craft. Our rock tumbler perfectly solves this dilemma. Constructed with lightweight ABS and rubber, it features three adjustable timing modes (1, 2, and 4 days) for long-lasting performance and works great for polishing all types of rocks. Key Features All-Round Durable Construction:Adopting premium stainless steel, ABS and rubber components, the rock tumbler boasts strong anti-rust, anti-corrosion and high-temperature resistance. It stays sturdy and scratch-resistant through repeated use, delivering lasting value for daily DIY stone polishing. Flexible Composite Timing System:Customize your polishing cycle with 1/2/4-day adjustable modes that support up to 7 days of combined runtime. Featuring intuitive one-key control, this fully automatic tumbler requires no complicated steps. Kids can easily operate it independently for hands-free stone polishing. Fun STEM Educational Experience:Turn outdoor stone collection into a scientific exploration journey! This rock polisher lets kids polish, observe and study various rocks, inspiring their passion for geology and natural science. It also cultivates patience, focus and fine motor skills through immersive DIY crafting. Details Stable & Table-Safe Anti-Slip Base:Four non-slip foot pads anchor the tumbler firmly in place to eliminate sliding during polishing, while effectively protecting your table surface from abrasion and scratches. Quick-Fix Locking Knob Design:Upgraded non-slip locking knob ensures fast, secure barrel opening and closing, simplifying stone replacement and daily operation. Notes 1. Minors should purchase and use under the supervision of a guardian. 2. Please read the instructions carefully before use and be aware of your surroundings. 3. After grinding, please finish the work and store the product out of children's reach. 4. The roller needs to be cleaned before putting in the next step of polishing grits. 5. The grinding should be kept away from the eyes. Once it enters the eyes, you should rinse with plenty of clear water and seek medical attention if irritation persists. 6. Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.