Prolongs eating time and helps with weight control. Reduces the risk of vomiting and gas. Slower eating helps with "bloating and gulping" that can lead to vomiting in some animals. Turns your pets meal into a challenging game. Cat sized but will work for small dogs. CAUTION: Cat's are fine but monitor dogs that are very hyper and or aggressive as they may poke their own eyes.
It's hard to tell in the image but it's bowl shaped and sinks in around the center. It only holds .5-2 handfuls of food at most. Use less food for weight loss. The less food you put in the more difficult it is for them to get out and it forces them to use their paws to pull out and slowly eat each piece of food. The longer eating time of 10-30+ minutes for a cat helps them from bloating and vomiting after meals.
The image is "very rough" first run with .4mm layer height but .2mm or .1mm could be used if you have the extra time. It's the very first print on my new QIDI Tech Dual extruder 3d printer. http://www.amazon.com/TECHNOLOGY-3DP-QDA16-01-Extruder-Structure-Filaments/dp/B01D8M32LU
I used PLA as it's environmentally friendly and plant based. 20% Infil, 4 shells, 2mm walls and ceiling. Could go much thinner as it took 8.7oz (244 grams) of filament. I have a heated bed and didn't use any rafts or supports. The first run in the picture is actually glow in the dark filament.
Sized for a 225mm x 145mm Makerbot Replicator dual clone bed but can be resized or scaled to fit your bed.