9V Battery Holder with Jack Male

From the shop's description

This 9V battery holder allows your battery to snap in tight and hold it in place, which is great in situations where you don’t want the battery just hanging. It also has three mounting holes so you can attach it securely to your enclosure. It is terminated with a standard 5.5 x 2.1 mm, centre-positive barrel jack. Features: Good Quality Material. Colour: Black. Nickel-Plated Contact Point. Cable length: 10 cm. Specifications: Maximum number of cell 1 Length of Cable (cm) 10 DC jack ID (mm) 2.1 DC Jack OD (mm) 5.5 Color Black Material Polypropylene Black Casing Length (mm) 55 Width (mm) 31 Height (mm) 20