Heather, Ours have long tubes of weight, I ordered them a little heavier for K. You can also distribute it in the way you want so it feels better. You pull out one of the tubes and fold the velcro back over... or put one back in. Ours has 8 I think. 8 pounds... i ordered it pretty heavy. Much heavier than K needed but she likes it that way. If I think of the site I will put it up.