Coir Sand Lock system is a special confinement device made of 100% Coconut Yarn, It is totally biodegradable and lasts upto 4 years depending on a the application sites. They can be easily installed with the help of wooden stakes and can be filled with soil, gravel, sand or other material to create a friendly environment for the establishment of vegetation. It can be used to stabilize river banks and embankments, sustaining vegetation and controlling soil erosion on steep slops, mountain edges, dam sites.