I was worried that these pads might be too small for my seven year old, but they are very adjustable and look like they would fit kids much older and even smaller adults. The gel cushion seems like it will protect well.
Update: 6-15-08
These pads are great and durable...they have held up to many spills onto a gravel road and have protected my son very well. Good buy. 5 stars

I am SO glad I chose these kneepads! The hard outer shell and shock-absorbing gel work better than I could have dreamed! I bought these for costuming purposes actually- I am building a costume that will require me to run around on my hands and knees.
I did a test run on some very hard ground, and I didn't feel a thing on my knees, not one single jolt! I have zero regrets buying these, they will serve me quite well. I reccommend these, they are very heavy-duty. 5 stars

Bought these for my son to be safe on rollerblades, no complaints. The gel does great at shock absorbtion, the construction is sturdy especially considering the cheap price. This is a great deal if you want nice, basic, one size fits all protection for roller sports. 5 stars

Biking, skating, kickboxing, deck cleaning..you name it, these pads can be worn to give your elbows and knees the protection they need at a price you can't beat. Delivery was prompt and all was in good order. Definitely recommended! 5 stars

My child is 5 and they fit great. He really likes them and they do the job. He has had a few spills on his bike and razor. :) 5 stars