Tex-R InsertTM membrane is ideal for blocking roots from growing through the drainage holes of the insert pot. Our patented technology involves coating a high quality nonwoven Tex-R® membrane with SpinOut® resin. The membrane is installed between the insert and socket pots. Uncontrolled growth ceases as the root ends go into a dormant stage on contact with the membrane. The root system actually reinforces itself within its growth medium.Can also be used as a capillary mat too.