The PETKIT FRESH Metal Large Machine Washable Smart Digital Feeding Pet Bowl features an anti-microbial Bioclean Act outer shell which automatically helps eliminate a large majority of bad bacteria and germs found in all cat and dog foods on contacts such as E-coli. Additionally the FRESH Metal features 4 skid-proof rubberized grips at the bottom for proper gripping and comes with an included screw driver for battery screw fastening. he FRESH also features an ergonomically countoured inclination tilted design for less reach-over by the neck area. The FRESH Metal is entirely Waterproofed and is recommended to solely be washed under the sink or running water and cleaned with a towel and is not dishwasher safe. When you purchase this device with the PETKIT P2 Activity Tracking Device users can automatically view their PETKIT FRESH Metal consumption data directly onto the FIT Application as well in both monitoring calories consumed and calories expended.