Brand Name: Dr.PenMicroneedle Length: 0.25mmMaterial: PlasticPower Source: None ElectricPACKAGING MATERIAL: OPP BAGQuantity: 10 PCS MicroneedlesUsage: Needle Cartridge for Derma PenFeature: Disposable TipsApplication for: Dr. pen M8Material of needles: Stainless SteelType: Bayonet Micro needleItem: Derma Pen M8 Needle CartridgeDiameter of needles: 0.18mmNeedle Type: 11/16/24/36/42/Nano/5D/3D