Features: brand new and high quality It has the characteristics of insulation and flame retardant, high for protection level and good performance. It is made of brass, and the surface is tinned with copper, which has better conductivity and longer use. Uses: Suitable for use in various environments such as electricians, household appliances, power distribution cabinets, and power distribution boxes. A variety of convenient terminal connectors provide everything you need for quick solderless electrical maintenance in your home, garage, workshop, or outdoors. With three different colors (red, blue, yellow) as well as a detailed chart for easy identification or for different purposes of use. Specifications: Material: Plastic/ Copper Packing Size: Approx. 12.7x2.2x6.4cm/5x0.87x2.52inch Connection Square: 0.5~6mm² Package Includes: 20 Pcs RV1.25-3.2 Red 20 Pcs RV1.25-4 Red 20 Pcs RV1.25-5 Red 10 Pcs RV2-5 Blue 10 Pcs RV2-6 Blue 5 Pcs RV3.5-4 Black 5 Pcs RV3.5-5 Black 5 Pcs RV5.5-4 Yellow 5 Pcs RV5.5-6 Yellow 2 Pcs RV5.5-8 Yellow note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.