This is the M3 Shim Washer Set from Team Integy.
AWESOME - AWESOME SET OF WASHER for car set up
FEATURES: 1mm to 4mm assortment
Assorted colors determine sizes
INCLUDES: 4mm washer (4)
3.5mm washer (4)
3mm washer (4)
2.5mm washer (4)
2.0mm washer (4)
1.5mm washer (4)
1mm washer (4)