Oster model 78129-101 pet nail grinder kit in a sturdy case, includes instructions. See attached photo of the kit I have and the Ebay listing below for what looks like the same product.
https://www.ebay.com/itm/286853490181?itmmeta=01KHEJEEFNBMV9KM7RJBP5YTVF&ha...
pet nail grinder kit (Derwood, MD)
This offer has been gifted to someone and is no longer available.