20 x Capacitor mounting brackets for use with 

10000uF 100VDC Electrolytic RG Capacitor 

This is for the Mounting Brackets Only and does NOT include the capacitor.

You can see more details at techbrands on line store under the product number ru6712

Dimensions:
5.5 cm between holes
5.4 cm inside diameter open
5 cm inside diameter closed
2.4 cm height
1.6 mm thick