A silicone chain!
A single link is 70 x 50 x 15mm (2.76 x 1.97 x 0.59"), and weights 31g (4.6 oz)
| Nr. of links | Length | Weight |
| 7 | 31cm (12.2") | 217g (0.5 lbs) |
| 11 | 47cm (18.5") | 341g (0.75 lbs) |
| 15 | 63cm (24.8") | 465g (1 lbs) |
| 19 | 79cm (31.1") | 589g (1.3 lbs) |
| 23 | 95cm (37.4") | 713g (1.6 lbs) |
| 27 | 111cm (43.7") | 837g (1.8 lbs) |
| 31 | 127cm (50") | 961g (2.1 lbs) |
| 35 | 143cm (56.3") | 1085g (2.4 lbs) |
| 39 | 159cm (62.6") | 1209g (2.7 lbs) |
| 43 | 175cm (68.9") | 1333g (2.9 lbs) |
Currently available in metallic silver, bronze and gold