It's where your feet go...
This lightweight tough nylon composite body pedal provides a large platform with the same grip as traditional alloy pedals via the bottom loading 8 hex traction pins per side.  Chromoly axle that is fully sealed and has 100% serviceable bearing and bushing system Offers great performance for a wide range...
Odyssey Twisted PC pedals-extremely simple, lightweight, inexpensive and famously durable plastic-bodied design.Often duplicated but never replicated. High-strength plastic composite Pedal Spindle: 9/16"
These folding pedals are ideal if you are looking to save a bit more space in storing your ebike.  Light alloy body Dual sided platform Built in reflectors 428g pair Size: 9/16"
MKS Sylvan Track Pedals. Accepts toe clips Light alloy body and cage
The Grind Pedals are a low profile pedal made from durable nylon gives riders a stable and comfortable platform for their foot. Integrated reflectors can be removed Pedal Spindle: 9/16"