Each clip is made of high grade copper and steel, sturdy, rust and and . Great for DIY crafting, clamping, electrical testing, or even jewelry making; Easy to be crimped, glued, or soldered; Compatible with wires, vinyl, cords, skewers, or banana plugs. Features - ColorGolden - Material: Copper + Steel. - Size: 3.50X0.80X0.50cm/1.38X0.31X0.20in -Note:The color of the sleeve is random - clips lightweight and safe, easy and quick to connect - Great for DIY crafting, clamping, electrical testing, or even jewelry making - Easy to be crimped, glued, or soldered. Compatible with wires, vinyl, cords, skewers, or banana plugs - When used these for electronics such as test or wire leads for low voltage projects, it can be easily crimped or soldered with lamp cord and insulated with electrical tape - They can also be used to hold objects while soldering, painting, fishing, candle making, photographing, or crafting Package list: 30 x clips