Protect, cushion and organize your cargo or storage areas with Polar Whale reusable high density foam dunnage! Includes 1 piece of durable heavy duty protective foam dunnage. Extremely strong and durable: No need to worry about punctured bags or leaking air, this foam cannot deflate! Easy to use: Couldn't be easier, no assembly or inflation required. Save time and money by reusing this high quality dunnage countless times. Available in many shapes, sizes and quantities: Please check dimensions in listing to confirm the best size that will work for you. Made from tough, rugged, high density, lightweight, cushioning, waterproof black foam material that is non-rattle, non-slip, non-absorbent and easy to clean. Each piece measures approximately 4" x 4" x 2".