Flex-Drain 51710 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 12-Feet

4 inch x 12', black, expandable solid flex-drain, can be used in most drainage applications, soil tight fittings are built into the pipe & the pipe holds its shape after it is bent, therefore no other connectors are needed, simply dig your trench, lay your flex drain pipe & cover it up, meets the corrugated polyethylene pipe association's test for crush resistance. This product adds a great value. Product is highly durable and very easy to use. This product is manufactured in china.