| Outside dia |
more than 725mm |
| Inner dia |
more than 440mm |
| thickness |
more than 107mm |
| Weight |
not more than 2.5 kgs |
| Buoyancy |
not less than 14.5kg |
| Shell |
High density polyethylene |
| Buoyancy material |
Polyurethane foam |
| mini order |
500 pcs (in one container) |
| Packaging |
polywoven bags | |
