Yup, I've got those. Have to get the stepladder out to put em on. But my neighbors awning (abt 6 yrs) doesn't let me think twice about putting them on. I get a little grime on the underside that is uncovered but it washes right off. A little over 2ys old and our awning looks very nice. They grip the roll pretty tight and the end extends past the fabric an inch or so and snugs up against the arm making a pretty nice seal.
Some of the home made ones are nice but I think the store-bought is better.
2013 F-350 CC SB 2WD 6.7PS
2013 Eagle Premier 351 RLTS
-SOLD- 2012 X23B
-SOLD- 2003 Ford Expedition 5.4, Bilstein shocks