![Springfield 2-7/8" Heavy-Duty Adjustable Mainstay Package w/Tension Knob - 9" Base [1250456-LC]](http://beastproshop.com/cdn/shop/files/110580XL_60x.jpg?v=1762230524)
Product information
2-7/8" Heavy-Duty Adjustable Mainstay Package with Tension Knob - 9" Base
Package includes 2-7/8″ high-strength rigid 4-keyed anodized aluminum air-powered height adjustment pedestal (500 newton cylinder) with 9″ round anodized base, and locking Trac-Lock™ swivel & slide. 3-1/2″ outer post with 2-7/8″ inner post.
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Springfield 2-7/8" Heavy-Duty Adjustable Mainstay Package w/Tension Knob - 9" Base [1250456-LC]
![Springfield 2-7/8" Heavy-Duty Adjustable Mainstay Package w/Tension Knob - 9" Base [1250456-LC]](http://beastproshop.com/cdn/shop/files/110580XL.jpg?v=1762230524)
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