[38mm]

Specification:

Material: Metal

Inside diameter measures approx :
34 -Inside diameter measures approx : 34.7mm (12-gon)(opening size)
35 -Inside diameter measures approx : 36.7mm (15-gon)(opening size)
36 -Inside diameter measures approx : 38.7mm (15-gon)(opening size)
38 -Inside diameter measures approx : 41.0mm (15-gon)(opening size)

Package Included:
1 X case Screw