10Pcs Battery Bulb Holder Connecter U Shaped End Sturdy Science Supplies Electrical Testing Experiment Crocodile Clips Wire Connecter for School Merits of stable current and fast conductivity because it made of copper as a conductor. There is no doubt that our product can be used for training hands-on ability and practical ability effectively. It can stably fix the wire and battery. Made of copper, it is durable to use. The length of the product is 28 cm. It is suitable for experiment. Item Name: Lead Wire Material: Copper Features: Stability, Sturdy, Hand-on Ability Color: Black, Red Size Details: Test Lead Wire Length: 28cm/11.02' (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 5 x Test Lead Wires (Red) 5 x Test Lead Wires (Black) _x000D_