| Brand | RONSTAN |
|---|---|
| Manufacturer Part Number | RF20101 |
| UPC | 9316800255528 |
Check the listing for details. Ronstan RF20101 20mm Single Loop Top Block, Ball Bearing. Condition: New. Listed at 12.95 USD. Ronstan 20mm Single Block, Ball Bearing, w/ Loop Top. Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction. Acetal ball bearings.