Quantity: 100pcsBlue connector: Suits cable/ wire sizes 1.5-2.5mm Features��100% brand new and high quality.Guaranteed to hold the strong crimps.Standard crimp and then seal heat shrink butt connectors.Allows visual inspection， prevents corrosion， and provided a waterproof seal.For best results use a hot air gun until it reduces in size and the adhesive flows， filling gaps within the terminal. Package Included:1 x Pack of 100 ��2 Heat Shrink Butt Wire Crimp ConnectorSpecificationsDimensions: 3.8 cm x 0.67 cm x 0.67 cm