Guozer Silicone Swim Fins Swim Flippers for Swimming Training Beginners, Universal size 25-30

Where do I start? They're tiny. 2.875-inch wide opening. Didn't come close to fitting a 5-year-old's foot. Even if you could fit your toddler's foot into the opening, it would be uncomfortable. I don't think the orange plastic is silicone as described. Just hard plastic. They're nasty. The black plastic strap was melting its plasticizers into a nasty grease. I had to wash it with soap for a few minutes before trying to put my son's foot in. The plastic bag it arrived in is marked "Toy", but I don't know how a kid could play with this. However, toy is more accurate than swim fin.