The rod body is made of insulating silicone which is designed to prevent slipping and hurting hands Universal multimeter jack, suitable for most multimetersCan change the , meet different needs, and save cost High and low temperature resistance/anti - freezingGood softness/high wear resistance/Soft silicone wireGood heat/cold resistance and electrical conductivity Cover with a protective cover when not in use Handle Material: Insulating Silicone Needle Material: 316 Stainless Steel Full Length: About 121cm Wire Outer Diameter: About 3.0mm Probe Diameter: About 0.2mm Plug Diameter: About 4.0mm for Digital Multimeter Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use color:Photo Color Material:Silica gel Package Contents: 1 x P30 Multimeter Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.