Features: Just prepare a crimper, then you can crimp the male and female connectors and connect wire in a few seconds without soldering. Save you time and improve work efficiency. Make of Brass, which provide high conductivity, antioxidation, the insulation sleeves are make of PVC, insulated, safe and protect. After connect the male and female connectors together. Then you can put on protective cover into. Flame retardant designs, safe to use. Perfectly for power tool and automotive applications. Whether you are working on your car cable, at homes, or on a scientific project, our cable connector ensures connect properly. With a storage box and are easy to store and carry. Easy to categorize and store. Specifications: Materials: Brass and PVC Style: 120pcs Round Connector Set/400pcs Round Connector Set/120Pcs Crimp Terminals Set/200Pcs Crimp Terminals Set Size: As shown in the picture Applicable wire: 0.3-1.5mm ² Package Includes: 120pcs Round Connector Set includes： 30PCS Male Heads 30PCS Female Heads 30PCS Male Sleeve 30PCS Female Sleeve 400pcs Round Connector Set includes： 50PCS Natural Color Male Heads 50PCS Natural Color Female Head 50PCS Tin Plate Male Heads 50PCS Tin Plate Female Heads 100PCS Male Sleeve 100PCS Female Sleeve 120Pcs Crimp Terminals Set includes： 40PCS Male Heads 20PCS Female Heads 40PCS Male Sleeve 20PCS Female Sleeve 200Pcs Crimp Terminals Set includes： 60PCS Male Heads 20PCS Female Heads 20PCS One Split Two Female Head 60PCS Male Sleeve 20PCS Female Sleeve 20PCS One Split Two Sleeve note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.