Store › SealWorthy TMB2 Type Backing Plate Image 1 of 1 SealWorthy TMB2 Type Backing Plate £22.38 TMB2 backing plate is for all SealWorthy TMB2 Type attachment products. Part ID: SWN001BReplacement part x2 Add To Cart Added! TMB2 backing plate is for all SealWorthy TMB2 Type attachment products. Part ID: SWN001BReplacement part x2