Material: 100% Real 304 Stainless Steel

Inner Diameter: 34mm (1.34) For all 5 size rings

Hight of Rings:

14mm( 0.55 ) for 230g Ring.

20mm ( 0.8 ) for 340g Ring

30mm ( 1.2 ) for 500g Ring

40mm ( 1.6 ) for 690g Ring

56mm ( 2.2 ) for 960g Ring

Special advantages:

1. New Design of Magnetic Lock. Easy to wear on/off

2. All edges are desighed to Round edge. our rings will not hurt skin while wear it.

3. Mirror Polished and very smooth beauty surface.

4. 5 size for choice. Different training in different period.