GolfStyle Golf Mat - Large Golf Practice Mat for Outdoor and Indoor Use - Swing Practice for Drivers - Artificial Turf - SBR - 100 x 150cm Golf practice mat made of artificial turf with a durable black backing. - Color: Green - Material: Artificial Turf - Backing Color: Black - Size: 100 x 150cm Thank you for viewing. Purchased on Amazon two years ago and used on artificial turf in the garden for about a week, then stored indoors. Dust and dirt have been removed by tapping and vacuuming, but there may be some fine dust remaining, so please check if you plan to use it indoors. There are iron scuff marks on the front and dirt on the back (see photos).