Elmer's Lightweight Foam Board (950180) Fine grain surface is reusable when decorated with push pins or tacks! Lightweight and durable for easy hanging! Extra thick so push pins or tacks will not push through Lightweight and durable construction Fine grain surface is reusable with push pins or tacks - Extra thick so pins or tacks will not show through Works well with adhesive for permanent displays Great for craft, school, business or DIY display or projects 20 x 30 inch size - cork foam board