Ergotron 45-248-026 Flat-Panel Display LCD Arm - 20 lb.Ergotron LX Dual Stacking Arm, Two Monitor Mount (45 248 026) Durable polished aluminum construction! Use this ingenious tool with your notebook and an external monitor or with two monitors. Create a productive multi display configuration that lifts screens up to where they? re easier to see while reclaiming valuable worksurface. Versatile: Use with a notebook and LCD or with two LCDs Extends LCDs or laptop up to 25" (64 cm) with an extension range of