Feature:1. Efficient Polishing: Foot grinder uses quartz stone as sand head, which is able to be polished efficiently, without irritation and gently exfoliate.2. Easy To Use: Electric foot grinder has soft surface, lightweight body, which is more comfortable feel and easier to use, and it is practical for you to use it.3. Intelligent Safety Lock: There is an intelligent safety lock inside rechargeable foot grinder, which can immediately lock and protect your foot skin once the force is excessive.4. Large Capacity: Electric feet callus removers have a built in lithium battery of 1200mAh, which is able to stand by for up to 3 hours, therefore you can use it for a while.5. ABS Material: Feet callus removers are made of ABS, which is durable and has a long service life, therefore you are able to be used for a long time.How to Use:Select the grinding bit that suits you, and press the switch to start using it.Specification:Item Type: Foot grinder Material: ABSBattery Capacity: 1200mAhType Of Battery: Li ion battery (built in) Package List:1 x Foot Grinder2 x Replacement Head1 x Brush1 x USB Charging Cable1 x Instruction