It is nicely machined of aluminum and natural anodized. The surface is slotted in order to avoide slipping. This enlargement simply slips on and is held in place with two set-screws. Length: circa 6,5 cm, Width: circa 2,9 cm
Also referred to as brake pedal enlarger, brake pedal extension, foot brake lever width extension. 
 Hand brake lever including screw and nut
BMW...
 
This Chain Spanner enables high-precision chain adjustment....
 
Handlebar risers 25mm
Raising the handlebar by 25mm...