honourable George , I think ive got some 661 knee and elbow pads that will fit a 9 yr old , they are like new , boy had them for about 4 weeks before he decided to take a massive growth spurt , you can have them for a small donation to west mids air ambulance or buxton mountain rescue , (both were a great deal of help when I had a really bad fall whilst climbing ) let me know and ill try and dig them out if the wife hasn’t got rid of, back on shift tomorrow till Friday so wont be able to post until early next week