Do you feel knee pain when cycling? Are your knees going outward when you pedal?
If yeap, you've likely noticed this when riding with others. The origins lie in an under-discussed topic in cycling; stance width.
If you have a wider stance width (many riders do), you may require more lateral (foot out) adjustment.
The Pedal extenders provide the extra length for the comfortable and professional foot clearance.
It extended pedal spacers 0.787"(20mm) effective, knees that track outside the pedal by adding length to the pedal axle,move the foot out and away from the crank arm to provide more foot clearance.

NOTE: 1.Only applicable for 9/16" pedals and Cranks, CAN'T APPLICABLE 1/2".
2.Not recommended for use it with carbon cranks.
3.Install it in the correct direction (left and right) with the appropriate wrench.

Parameters:
Net weight: 70G(0.155LB)/pair
Size: 11.8 * 0.787" (32*20mm)
Applicable spindle specification: 9/16"
Purpose: extend pedal spacers 0.787"(20mm)