Great product at inexpensive price. I really used this to control erosion around my new building where I had both slope toward and bank away to control. I put landscape fabric down over dirt and packed rock, then spread and staked down the geocell followed by filling it with #5 stone which holds everything in place. Don't forget the drainage pipe goes in first under everything wrapped with membrane in a bed of rock. I saved a lot by doing it myself - a little bit every day.