SparkFun Electronics
ROB-12128
ROB-12128

SQR SCREW PLATE SMALL 0.77"

Makeblock Co., LTD.
87303
87303

8MM BEARING BRACKET A

Makeblock Co., LTD.
83008
83008

TIMING PULLEY 62T-BLUE 4PC

DFRobot
FIT0007
FIT0007

METAL BALL CASTERS

SparkFun Electronics
ROB-12242
ROB-12242

SHAFT SOLID 3/8"D X 6"L

Rose+Krieger
4026207
4026207

SLOT STONE N 40MM, M5

SparkFun Electronics
ROB-12178
ROB-12178

SHAFT SOLID 1/4"D X 9"L

SparkFun Electronics
ROB-12375
ROB-12375

TUBE - ALUMINUM