The Wheeler Delta SeriesA(R) AR-15 Maintenance Mat is perfect for any AR-15 owner. It features a screen printed expanded view of an AR-15 Carbine to easily identify the parts of your rifle. The Mat is made of a dark gray non-marring padded neoprene material with a durable non-skid rubber backing to protect firearm finishes while helping to keep track of small parts. Excess oils and solvents are absorbed into the mat, keeping the surface clean and dry. Each mat is machine or hand washable with mild detergent and water, and can be rolled up to easily fit in your range bag.