Product Description If you're planning on letting children play on your Artificial Grass then you should consider using the Nomow Underlay. Not only does it provide a more cushioned surface to play on which feels great, but its shock-absorbing technology reduces the risk of injuries.Designed to add comfort and improve drainage, the Nomow Underlay is the perfect addition for your Nomow artificial grass. It is commonly used on hard surfaces like tarmac or concrete but can be used on sand as well.The Nomow Underlay has a width of 1.8m but can be sold to any length up to 25m with 1m increments. Quantity = Length. Depth of the underlay is 10mm. This is an Extra Choice product. Please see the Extra Choice information within customer services for more details. Reduces the risk of injuries. Provides a more cushioned surface. Length is available in 1m increments. Quantity = Length. DIY Guide and Project Planner available in Product Downloads Tab. For installations on tarmac or concrete.