The Dimension? Alloy 9/16" Axle (standard size) Pedals with Toe Clips and Straps are exactly what you need to complete your bike. The toe clips and straps help to prevent foot slippage on rough rides. Reflectors are also included and pre-installed.Aluminum cage and body on pedals with toeclip strap set Dimension Combo Pedal Sets are assembled with size large toe clips, straps and reflectors. Keep in mind the non-drive side (side without gears) is reversed thread.