1 Each. Nesting/stacking chair is ideal for multipurpose and training spaces or any environment where space is limited and seating arrangements change frequently. They are designed to stack four high on the floor, and the frames nest together even when stacked. Casters enable smooth and easy movement across any type of surface. The mesh back is breathable and flexes with the user while the foam seat cushion creates long-lasting comfort. Each seat cushion has a plastic-enclosed underside to protect the chair.