SB25 Grid Storage Box with RECORD CARD - Holds 25 3.05mm or 2.3mm Grids. SB25BN Grid Storage Box with RECORD CARD - Each box has a UNIQUE number on the face and one end. SB50 Grid Storage Box with RECORD CARD - Holds 50 3.05mm or 2.3mm Grids. SB50BN Grid Storage Box with RECORD CARD – Each box has a UNIQUE number on the face and one end. SB100 Grid Storage Box with RECORD CARD – Holds 100 3.05mm or 2.3mm Grids. SB100BN Grid Storage Box with RECORD CARD – Each box has a UNIQUE number on the face and one end.
