4 1/8 in. Quick Clips System B Connector Block - 21625https://www.crownmoldings.net/media/ecom/prodsm/21625-sm.jpgFocal Point 4 1/8 in. Quick Clips System B Connector Block (21625) Moulding AccessoryFocal-Point-4-1_8-in-Quick-Clips-System-A-Connector-Block-216258.00Classic Ceilingsin stockhttps://www.crownmoldings.net/Item/Focal-Point-4-1_8-in-Quick-Clips-System-A-Connector-Block-21625