These are high quality strong and safe nail on insulators used mainly for hi-tensile wire fences. Their smooth design make them safe for all types of animalsFeatures Very strong claw design High quality smooth face Excellent for high tension fencing Fence Post Type - Wood Attachment Position - Front or Back Attachment Method - Nails/Screws Insulator Conductor Type - Polyrope Polywire Wire Insulator Material - High Density Polyethylene Color - White Dimension - 10 x 8 x 3 in. Item Weight - 1.3 lbs. - SKU: FMSP023