Off Brand Magna Tiles

[Baby Beluga]

For those who have magna tiles, are they the magna tile brand or an off brand? I was looking at these but was unsure of the difference in quality between the name brand and off brand.

https://www.amazon.com/Connectics-Magnetic-Educational-Inspirational-Recreational/dp/B01M1JZE57/ref=sr_1_8?ie=UTF8&qid=1496442881&sr=8-8&keywords=magna+tiles

[Mad_Pistachio]

Our church uses brand ones. We recently got Stick N Stack for birthday, I see no difference, really.