Four Qualcraft 2200 Steel Pump Jacks, 8 Wall Braces, also pair of Ladder Jacks

Description

Four Qual-Craft Pump Jacks model 2200, plus eight wall braces.
These make two independent platforms.
I have used these for installing sheathing, siding, and windows on two-story buildings.
Also included is a pair of adjustable Ladder Jacks, which are used with two parallel ladders and planks to make a work platform.
Here is the description, from Home Depot:
The Qualcraft Pump Jack is designed for use with fabricated wood poles constructed of spliced 2x4s
up to 30 ft. high and accommodates two 2 in. x 10 in. wood planks with toeboards attached.
Simple foot action does all the work needed to raise it into position, and a hand crank lowers it easily.
Designed with safety in mind, the jack's positive double-lock system brake secures itself to the wood poles
to create a stable hold.
Foot-operated design is economical and easy to use.
For use with shingling, siding, sheathing, insulating, painting, building, roofing, home repair and other maintenance work
Secures to wood poles with a positive double-lock system.
Rugged steel construction for strength.
Can be adjusted for poles up to a height of 30 ft.
... and this is the description from Amazon:
The Qual-Craft Steel Pump Jack System Kit is a super portable, go-anywhere wood staging system for all roofing and siding jobs. It's like having your own efficient, economical do-it-yourself scaffolding kit. Two pump jacks fit on fabricated poles made of spliced 2 x 4s and accommodate a platform comprised of two 2 x 10 wooden planks measuring up to 6 feet long with toe boards attached. A positive double-lock system brake allows each jack to secure itself to the wood poles. Once assembled, just pump the patented steel pump jacks with your foot to raise the platform, or crank with your hand to lower the platform to a desired height. U.S.A. Material Type: Steel, Capacity: 500lbs. Platform Size: 72" x 20"
Please call or email to come over and have a look at them.
thank you,
~Mark