Ending today, Siensync via Amazon offers the Siensync Electric Pet Nail Grinder for $15.99. Coupon code "DCKSHC3T" drops it to $9.59. Plus, Prime members receive free shipping. That's $19 off and the lowest price we could find. This nail grinder reduces the risk of over-cutting and reduces discomfort to the animal. Two AA batteries are required (not included).