Review on 🌈 Vibrant Transformation: Color Changing Tumbler Cups & Straws by Paul Tilden

I bought these glasses for my child's first birthday. They are affordable and you get 8 of them instead of the other 6 or 5. The lenses have a matte finish which I liked the most. They are not too small and not too big. The lids fit well, but I didn't include them in my pictures again. The only thing that bothered me was the color change. Not as advertised. In one of my blue glass paintings, the box shows light blue to blue, light green to green, light blue to cyan. To be honest it was more than 2 blue ones and one blue one. The blue has changed to dark blue, which is normal. The other two turned greenish (one near green moss). None of them are blue. Next with a purple jar: there should be one light pink to pink out of the box. In fact, a light pink glass is closer to peach than pink. It didn't turn pink either, it looked more like red to me. This may not be a problem for others, but it is important for me as I plan to keep the blue and pink colors to myself. I love pink and was a bit disappointed that it wasn't what I expected. Like glasses, I love them. As far as function (color changing) goes, there isn't much. Finally, if it's leakproof? I would say yes ONLY IF you don't tip it near the straw hole. but if you tip it close to the rim of the glass, yes, it doesn't flow.