You are purchasing 2 gas struts, most commonly used for the SIDE window of your Flexiglass, Tourertop or TJM Canopy.
The gas struts measure 230mm between centers when the canopy is in the open position and the gas struts are fully extended. They have a rating of 60N or 13lbs.
They are ideal replacements for Suspa part C16-03288.
These struts are easy to fit, come with a 12-month warranty.