They are used to adjust the position of the carrier with a set on each side.
Power-Tec Mobile Masking Machine Large Wheels Serrated Edges Mask Paper TS2
Fukursul 360 Degree Swivel Gardening Stool with Tool Tray & Height Adjustment, Rolling Work Seat with Sturdy Construction & Smooth-Rolling Wheels, Gardening Rolling Seat Blue
Adjustment Handle Lever L+ R Car Replacement For VW Passat Polo Golf Jetta Seat
BTB WK24R-S Reverse Blade Serrated 240mm Long
WK24-S 240mm Long Bent Blade (Curved Glass) Serrated
BTB WK1-S 300mm Long Flat Blade Serrated
