A rigid boat trailer central keel roller made from solid PVC featuring a flat centre, conical sides, and a steel core to assist with boat launching and lifting.
| TR101A | TR101B | |
| Width | 195mm | 195mm |
| Conical Support Outside Diameter | 110mm | 110mm |
| Keel Support Diameter | 60mm | 60mm |
| Internal Diameter | 17mm | 21mm |
| Colour | Blue | Blue |
| Material | PVC | PVC |
| Internally Bushed | Yes | Yes |
| Steel Core | Yes | Yes |