CamSmart Metal Portable Car Pump Foot Pump Air Compressor with Tire Pressure Gauge On-board Aerator (Blue) Samll in size, convenient and portable for quick, easy use. Use no energy, eco-friendly and perfect for use in an emergency. Metal metarial design for strength and durability Lasting and durable construction for a long service life Ideal for blowing up your cars, bicycles, motorcycles, rubber boats, balls,inflatable toys, etc.