Exhaust/Pump Dual Inflatable Jack/Air Jack 4T Car Truck SUV Off-road Rescue works with 4-ton vehic;made of 1000Dx1000D vinyl at0.9 mm thick;carry-on bag uses480D rip-stop nylon dual inflation system - vehicle exhaust pipe or pump (pump adapter included in accessory bag); 61 cm (21 inches) diameter; 6 m (20ft) long heat-resistant inflation hose; large air-intake connector fits all exhaust pipes; works for medium to large SUVs; heavy-duty one-way valve to maintain pressure;spiked base to maintain stability;