The Wheeler Delta Series AR-15 Maintenance Mat is perfect for any AR-15 lover, featuring a screen printed exploded view of an AR-15 Carbine. The Mat is made of a dark gray no-mar, padded neoprene surface 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 it rolls up easily to fit in your range box.