
Yes, they work and there are no leakage problems for at least 24 hours. BUT not as good as plastic.1. Diets are a bit more difficult to stir due to the coarser material, I tended to slosh diet bits out of the cup the harder I stirred. Smooth plastic cups make mixing easier.2. Similarly, the rougher material makes some of the protrusions a bit more difficult to insert and pull out (sometimes you have to push them in). Plastic cups are easier to insert and remove.3. Then there is the obvious, they cannot be reused.

Royal Canin Persian Adult Dry Cat Food - 3 Lb Bag
35 Review

Dry food for reptiles Tetra ReptoMin Sticks, 250 ml, 60 g
16 Review

Weruva Chicken Free Wet Dog Food Variety Pack, Just 4 Me, 14Oz Cans (12-Pack)
14 Review

Give Your Feline Friends The Best With Nulo Freestyle Cat & Kitten Food - A Premium Grain-Free Dry Small Bite Kibble With High Animal-Based Protein And BC30 Probiotic For Optimal Digestive Health
21 Review

4-Pack Of Purina Beneful Dry Dog Food With Farm Raised Beef - 12 Ct. Boxes
44 Review

Royal Canin Yorkshire Terrier Adult Wet Dog Food 3 Oz Cans, 12-Pack
30 Review

Royal Canin Senior Cat Food - Aging 12+ Thin Slices In Gravy, 3 Oz Cans
41 Review

Fuel Your Adult Dog'S Lean Muscle Development And Vitality With Nulo Frontrunner Dry Dog Food: A Delicious Grain-Inclusive Recipe With Pork, Barley, & Beef And High Taurine Levels
12 Review