This device is affordably priced to be disposable, yet is durable enough to be reused. Rectangular (4 x 5 x 10") foam blocks sealed in highly visible orange vinyl offering firm yet lightweight support. X-ray translucent and adjustable to fit children and adults. Easy to use and quick application makes this a great choice in immobilization. Puncture and water resistant while offering a writable surface for easy ownership and patient identification. The head Blocks float making them ideal for water rescue.