Topperez has 4 actuators to raise truckbed topper...add canvas , and.have turned truckbed into a camper. Lightly used, excellent condition, all parts included except velcro that attaches to truck bed. This one is for a 5 foot truckbed. Turns 5' bed into a 6.5' camper.
Check out topperez on youtube to see the application and reviews is easiest way to understand how it operates.
Asking $1350 obo