Aluminum ring 5 mm internally, 9 mm externally, 1 mm thick.

Aluminum ring 6 mm internally, 10 mm externally, 1 mm thick.

Aluminum ring 6 mm internally, 12 mm externally, 1 mm thick.

Aluminum ring 8 mm internally, 12 mm externally, 1 mm thick.

Aluminum ring 8 mm internally, 14 mm externally, 1 mm thick.

Aluminum ring 10 mm internal, 14 mm external, 1 mm thick.

Aluminum ring 10 mm internal, 16 mm external, 1 mm thick

Aluminum ring 12 mm internal, 18 mm external, 1.5 mm thick.

Aluminum ring 13 mm internal, 18 mm external, 1.5 mm thick.

Aluminum ring 14 mm internal, 20 mm external, 1.5 mm thick.

Aluminum ring 16 mm internal, 20 mm external, 1.5 mm thick.

Aluminum ring 16 mm internal, 22 mm external, 1.5 mm thick.

Aluminum ring 18 mm internal, 24 mm external, 1.5 mm thick.

Aluminum ring 20 mm internally, 24 mm externally, 1,5mm thick.

Aluminum ring 22 mm internally, 27 mm externally, 1.5 mm thick.

Aluminum ring 24 mm internal, 30 mm external, 2 mm thick.