The quality of these signs are really good. I don't think the letter height is 15 inches but from top to bottom with the decorations, it could be 15. The stakes are very thin. They dont stand straight when the wind is blowing. Also, the stakes are not 15 inches. They should be at minimum 15 so that we can insert 5 inches in to the sign, 6 inches in to the ground. Only then they can withstand the wind and still are standing above the grass.Stakes need improvement. If they can be same size on one end(to insert in to the sign) but double in diameter on the other end they will be sturdy. Also, if they can be pointy on the end that goes in to the ground, it will make it easy to install.Very cute and colorful! A little smaller than I expected but did the job!Good quality for a good price , instead of putting the usual banner that would go away with the windThe letters are good quality but the stakes are plastic. Wasn’t super easy to stake into the ground. Kids decided to play with the signs so many of the stakes are broken now. I’ll buy new stakes if I want to use the signs again.Not massive but does the job. Seems sturdy and will be usable for many bdays to comevibrant colors and durable enough for multiple use, although a little smaller than expected it still worked perfectlyI had seen a HAPPY BIRTHDAY sign on our street, a few weeks before I needed one, and loved the look, color and style! As usual, I turned to Amazon to search for this type of sign and found it. This sign was no problem to install and a breeze to take down. The look on my granddaughters face, when the family drove in for her birthday party, was enough to let me know I had made a hit with this sign!