This is an SX350 cradel that will when used properly center your board and if used on a 1590B Hammond box will not have to be glued. The Board is hot glued in this cradle. You dril a 20mm hole in the box and it the round portion fits in that hole and is held in place by pressure against the battery sleds. This version is ment to be used with Bezel. You can use either Sx350squarebezelroundholevertoffset 2 PIECE VERSION or the Sx350squarebezelroundhole 2piece Ver. Both do away with some of the gaps you see when you use a round hole but the offset I fell does the best job with that.