They use friction to hold the pins in the raised/retracted position. It seems to be working very well. It took me a few minutes to figure out where the brackets were attached and the orientation of the pins. They don't come with instructions. Otherwise they are very good for the price. I think they will persevere and do their job well.
XFMT Full Face Motorcycle Helmet Flip Up Adult ATV Dirt Bike Carbon Fiber S (Large, White Pink Butterfly)
29 Review
Xelement B7552 Men'S Black 'Easy Fit' Premium Leather Motorcycle Chaps - 36
32 Review
Black Motorcycle Leather Chaps For Women With Braided Design And Zipper - Xelement B7556 - Size 14
30 Review
LEGO Technic 42107 Ducati Panigale V4 R, 646 children
44 Review