READ THE FULL AD BEFORE BUYING LOT OF 5 USED electric linear actuators various styles. Most are 6" to 8" stroke They work with12-24v DC Estimated at a few hundred pound lift capacity (200-500lbs) Built in limit switches at end of travel 3/8 mounting holes GREAT for robotics, moving holiday lawn decorations, and much more.. Reverse polarity(+/-) to change direction (extend/retract) THESE are USED and may have some cosmetic defects scuffs/scratches etc..    Since these are assorted actuators and a MULTIPLE QTY ad you will not receive the EXACT ones in the photos but similar items, if you don't understand this do not buy. Since these are assorted actuators and a MULTIPLE QTY ad you will not receive the EXACT ones in the photos but similar items, if you don't understand this do not buy. any measurements shown in the photos are only for reference only  SHIPPING TO THE LOWER 48 ONLY DUE TO WEIGHT.