These inserts are made of T6-6061 aircraft aluminium.
CNC made, not stamped from a sheet.
Each size has a different colour to identify them quickly in your toolbox.
Large easy to read numbers, and bottom chamfer to make it easier to insert into the chassis.
17.5 = GREEN
18 = RED
18.5 = BLACK
19 = PURPLE
19.5 = ORANGE
20 = BLUE
Set include 4 inserts & 4, 5x12 mm flat head screws.
Suits: Losi 5ive-T