The 1/2-Ton Two-Stage Telescopic Jack Stand, No. 371-03321, from Ascot Supply, uses foot pedals for handsfree operation. An overload valve prevents the jack from being used beyond its rated capacity, while a speed-limiting valve guarantees an automatic safe speed descent of no greater than 1" per second. Hydraulic double pumps ensure that the jack can quickly lift its load in no more than 35 pumps, and the jack's piston rod and pump core are chrome-plated for a longer service life. The jack also includes a 59" tie-down chain and 4" steel swivel casters for easy transportation around the shop.