RC car wheel hex adapter 7mm to 12mm PETG

Sizes Inner-7mm, Outer-12mm,High-10mm,Middle hole 5mm

Parts are new. 3d printed with 100% infill. 

There is 6 colours available:

red, blue, yellow, green, black , white

Please let me know if you need any other sizes or any be spoke design parts for RC car.

Set of 4