1. 3 DIFFERENT TYPES OF ROLLERS: Delicate rollers for daily foot care, regular rollers for normal dead skin or calluses, rough rollers for thick calluses or hard dead skin. 2. 2 SPEED ADJUSTMENT: 6000rmp/min at low speed, 8000rmp/min at high speed. low gear speed is suitable for delicate skin care, high gear speed is suitable for thick wound tissue or dead skin. 3. CALLUSES REMOVAL: You can choose the speed you need according to the dead skin or calluses on your feet. If the pressure is too strong, it will stop working automatically to avoid damaging healthy skin. 4. AUTOMATIC SWITCH OFF: Gravity sensing auto shut off feature reduces the risk of scratching by automatically stopping the operation when excessive pressure is detected. 5. SAFETY TO USE: Foot grinder has no harmful blades and roller surfaces that can harm your skin, providing a safe and gentle exfoliation experience for soft and smoothing feet without causing any irritation or discomfort. Spec: Item Type: Rechargeable Electric Foot File Material: ABS Battery: Lithium battery, capacity 600 mAh (built in) How to Use: Click the switch to start, click to adjust the gear. packing list: 1 x Foot Grinder 2 x Replacement Heads 1 x USB Charging Cable 1 x Instruction ManualRemoves Dead Skin Effectively:Achieve soft and smooth feet with our Rechargeable Electric Foot Grinder, designed for gentle and effective dead skin removal, safe exfoliation, and convenient portability. Featuring two speeds, a cordless and rechargeable design, and a smart pressure sensor, this foot grinder offers a safe and versatile solution for achieving beautiful and elegant feet effortlessly. 2 Speed:Stay mobile and enjoy the convenience of a rechargeable and portable design that allows for cordless use at home and outdoors. Suitable for men, women, the elderly, and manual laborers, this foot grinder can be used for an extended period of time without the need for constant charging, offering flexibility and convenience for your grooming routine. Safe To Use:Experience the efficient removal of dead and hard skin with two speeds, gentle and powerful, that allow for easy exfoliation in minutes, creating beautifully smooth and elegant feet. Say goodbye to rough, calloused skin and hello to soft, rejuvenated feet with the gentle yet effective performance of this foot grinder. Exfoliation:Customize your exfoliation experience with two speed adjustments, low speed at 6000rmp/min and high speed at 8000rmp/min. The low gear speed is ideal for delicate skin care, while the high gear speed is perfect for targeting thick, bruised tissue or stubborn dead skin. Choose the speed that suits your needs for tailored exfoliation results. Rechargeable And Portable:Ensure a safe exfoliation experience with our foot grinder, which features no harmful blades or roller surfaces that can damage the skin. Enjoy soft and smoothing results without any risk of irritation or discomfort, making it suitable for all skin types and conditions.