5Pcs Black Pipe Connector DIY Shelf Tent Fixed Connector Fittings I.D 8/12/16/19mm ABS Plastic Tee Four Way Elbow Straight Joint

5Pcs Black Pipe Connector DIY Shelf Tent Fixed Connector Fittings I.D 8/12/16/19mm ABS Plastic Tee Four Way Elbow Straight Joint

AliExpress