Review on Customizable Building Block Plates: 8-Pack Self-Adhesive Base Plates For Wall Or Desk, Compatible With Major Brands And 440 Pcs For Fast And Easy DIY Fun! by Cameron Head

These are a great value! I've included a picture of a house my son and I built mixing these with brand name Duplos. They work perfectly, except for not snapping to our tabletop as snug as the name brand ones. Honestly though I don't care about that. They seem to be exactly the same quality. I can't tell the difference. I might buy more, but so many came in the pack I'm not sure I have enough storage. 😊