This Manrikigusari is made with a welded chain and a weight attached to one end and a steel ring attached to the other end.
This Manrikigusari is hand made. It is not mass produced and is much stronger than the cheaper ones you buy in martial arts shops.
The fundo is rectangle, tapered on two sides, with a rounded end for the ring to pass through.
Made to order
Chain used may be slightly different than shown in the photograph