The Hanging Nap Mat System - Pack of Six by Sprogs allows teachers to conveniently hang and store the mats on a wall-mounted rack when not in use, saving valuable floor space. (Wall-mounted rack sold separately.) Ideal for daycares, preschool classrooms or any early learning space. Each mat features two grommets at one end for easy hanging, a cozy two-inch thick foam core and a soft, leather-like polyurethane cover. A textured non-slip base keeps the mats safely in place when in use, and a clear name tag holder allows each mat to be personalized. Polyurethane covers can be wiped clean with mild soap and water. GREENGUARD Gold certified for quality indoor air.