Original Stand Steady Leg Extenders (5 inch extender) Extension legs are used to increase the height of your Stand Steady standing desk. The Stand Steady WITHOUT extenders adjusts from approx. 11.25" to 15.25". These 5" extenders allow your Stand Steady desk to adjust up to 5 more inches in height. Height WITH the extenders is approx. 16" to 20". Q: I bought the Stand Steady standing desk. Do I need to also buy the extenders? A: Most people do not need the extenders. They are for people considered "very tall". If you are over 6'2" these may be a good choice for you. Q: Can I return them if I don't need them? A: Yes Compatible with "Original" and "Mega" Stand Steady Desks