Yueton&reg; Pack of 10 2.1x5.5mm Male DC Power Plug to Faux Leather 9V Battery Button Connector Cable (T Type) DC male plug 9v battey cable DC plug type: 2.1 x 5.5mm male to 9V battery clip Material(External): faux leather+plastic Great to use for LED strip light or arduino Package included 10 pcs T type 9v battery clips