High tensile galvanized steel frame securely attaches to existing fence wire. Electrified wire sits 12 from existing fence. Extends the life of barb and woven wire fences. Pre-assembled and ready to use. Replacement insulator is item SI02SP.Specifications Color: Black Attachment Method: Snap on Attachment Position: Front or Back Corner Insulator: No Insulator Conductor Type: Polywire Wire Insulator Material: High Density Polyethylene Dimension: 3.50 H x 10 W x 16 L Weight: 15 lbsFeatures All Speedrite energizers with 12 joules of output energy or greater. - SKU: FRMSP052