HUDY have just released his new Air Vac. This helpful tool is an ultra-compact electric-powered vacuum pump for 1/8 off-road shock absorbers, developed to quickly & easily bleed unwanted air bubbles from oil-filled shock absorbers and differentials. May also be used as tire additive penetrator to help penetrate additive in the small pores of the foam tire. Well penetrated tire works better and last longer. Electrically operated, simple operation.