6 pack 12" x 24", Quick Dam Sandless Sand Bag, Protect Your Home Or Property In Times Of Flooding, Ready To Use, Just Lie In Place & Let The Water Do The Rest, Expand & Activate On Contact With Water, Growing In Size To Absorb, Contain & Divert Problem Water, Light Weight & Easy To Use, Place In The Path Of Problem Water & Prevents Water From Entering Your Property, Stack Multiple Bags To Increase Wall Height, For Emergency Situations.