Extra Tall - 39” center pole allows you to easily adjust your monitor between sitting and standing positions, making your workstation more ergonomic. Mounting hardware is not included. Solid Steel Construction - Designed for sturdiness, durability, and scratch resistance, this 3 section pole is built to last. Compatibility - Works with the following VIVO stand models: STAND-V001, STAND-V001T, STAND-V002, STAND-V002C, STAND-V002F, STAND-V002T, STAND-V003D, STAND-V003T, STAND-V003V, STAND-V011, STAND-V012, STAND-V012C, STAND-V012T, STAND-V101A, STAND-V101D, STAND-V102D, and STAND-V102K.