On time delivery, the kids in my son's school loved to play with it.  Although the picture is more attractive and the colors online seem more vibrant them the ball itself, it is still a beautiful ball, It holds air for long time; size 3 is for preschoolers, and size 4 is ideal for 6 to 10 y.o. Size 5 is heavy for small kids; It's better for older kids over 12 (depending how big they are). For those who pay delivery, I would suggest to check your local sports stores/toys selling stores for good deals before buying it. There are many colorful balls out there for less($). The product plus shipping may be pricy compared with other brands in stores.  By the way, it doesn't  really glow in the dark. I bought the dark blue and green ball. How could a dark-blue ball glow in the dark? The green part was more visible but still is not really glowing how one would expect. Therefore, reduce your expectations about a "glowing-in-the-dark" ball. I thought about sending it back, but my son and his friends love it and that is really what matters.