C.E. Smith 4" Bow Bell Roller Assembly - Blue TPR4" Bow Bell Roller Assembly Blue TPR Durable thermal plasticized rubber (TPR) bow bell assemblies help to center the boat and prevent bow to bowstand contact. Features: Blue TPR 5 1 2" diameter 8" Wide 1 2" shaft Fits 4" wide center roller bracket Feature: Blue TPR 5 1 2 diameter 8 width 1 2 axis suitable for 4 wide center roller bracket C. E. Smith 4 bow roller assembly blue TPR condition: this product is brand new, unopened SKU: NVN 49861 MPN: 29331