The Intex 5 in. x 5 in. x 48 in. Post Sleeve fits Dartmouth, Hampton and Liberty rail systems. The post has glued, lock-miter corners. 48 in. length accommodates both straight and stair rail applications. Adjustable shim system to compensate for wood post size variation. Matte finish matches across all kitted INTEX Rail Systems. Accepts paint beautifully, but does not require painting.