The Oster Professional Spin Li+Ion Cordless Nail Grinder quickly manicures your dog's jagged or too-long nails. This 2-speed, professional-caliber nail grinder uses rechargeable lithium ion technology to provide powerful, consistent, long-lasting grooming. In fact, the Oster Professional Spin Li+Ion Cordless Nail Grinder runs up to 2 hours on a single charge. Lightweight, cordless, ergonomic design lets you trim your dog's nails in any setting for optimal comfort for your pet and for you. This portable nail grinder for dogs also recharges quickly, so you can be ready to trim nails whenever necessary.