![Springfield 2-3\/8" Adjustable Mainstay Package w\/Locking Swivel [1250100-L1]](https://cdn11.bigcommerce.com/s-jv4ukvb2hg/images/stencil/600x600/products/33451/46021/111098XL__72519.1762393385.jpg?c=1 "Springfield 2-3\/8\" Adjustable Mainstay Package w\/Locking Swivel [1250100-L1]")
![Springfield 2-3\/8" Adjustable Mainstay Package w\/Locking Swivel [1250100-L1]](https://cdn11.bigcommerce.com/s-jv4ukvb2hg/images/stencil/1280x1280/products/33451/46021/111098XL__72519.1762393385.jpg?c=1 "Springfield 2-3\/8\" Adjustable Mainstay Package w\/Locking Swivel [1250100-L1]")
Product Overview
2-3/8" Adjustable Mainstay Package with Locking Swivel
Package includes 2-3/8″ high-strength anodized aluminum air-powered height adjustment pedestal (500 newton cylinder) with 9″ round anodized base, and locking Trac-Lock™ swivel.
Specifications:
- Adjusts: 14" to 20"
- Seat Mount: 3100031-LAR1
![Springfield 2-3\/8" Adjustable Mainstay Package w\/Locking Swivel Slide [1250150-L1]](https://cdn11.bigcommerce.com/s-jv4ukvb2hg/images/stencil/500x659/products/33452/46022/111099XL__39161.1762393387.jpg?c=1 "Springfield 2-3\/8\" Adjustable Mainstay Package w\/Locking Swivel Slide [1250150-L1]")
![Springfield 2-3\/8" Adjustable Locking Short Mainstay Package [1250250-L1]](https://cdn11.bigcommerce.com/s-jv4ukvb2hg/images/stencil/500x659/products/33453/46023/111100XL__60514.1762393389.jpg?c=1 "Springfield 2-3\/8\" Adjustable Locking Short Mainstay Package [1250250-L1]")
![Springfield 2-7\/8" Heavy-Duty Adjustable Mainstay Package w\/Slide [1250301]](https://cdn11.bigcommerce.com/s-jv4ukvb2hg/images/stencil/500x659/products/33408/45960/110577XL__42106.1762230810.jpg?c=1 "Springfield 2-7\/8\" Heavy-Duty Adjustable Mainstay Package w\/Slide [1250301]")
![Springfield 2-7\/8" Heavy Duty Mainstay w\/Swivel [1250300]](https://cdn11.bigcommerce.com/s-jv4ukvb2hg/images/stencil/500x659/products/24340/31706/99070XL__72650.1717065408.jpg?c=1 "Springfield 2-7\/8\" Heavy Duty Mainstay w\/Swivel [1250300]")
![Springfield 2-7\/8" Trac-Lock III Locking Swivel [1100021-L1]](https://cdn11.bigcommerce.com/s-jv4ukvb2hg/images/stencil/500x659/products/33406/45958/110574XL__01992.1762230805.jpg?c=1 "Springfield 2-7\/8\" Trac-Lock III Locking Swivel [1100021-L1]")