Patent ID: 8899300

Claim:
A method of adjusting a length of a roller shade assembly, the roller shade assembly comprising: a tubular roller having a generally cylindrical internal cavity; a tubular extension telescopically mounted within the internal cavity of the tubular roller, an end of the tubular extension being disposed outside the internal cavity, wherein the extension comprises an outer wall and a plurality of winged splines located around an outer circumference of the outer wall, the plurality of winged splines extending along at least a portion of a length of the extension, each winged spline of the plurality of winged splines comprises first and second members that form an acute angle with respect to the outer circumference of the outer wall; and an outer tube mounted over the extension, the method comprising the steps of: cutting the extension to a desired length; and sliding the tubular extension into the internal cavity of the tubular roller until an end of the tubular extension is flush with an end of the outer tube.