Package included: 125/200 x Waterproof heat shrink butt connectors (packaged with box) Two Styles: Style 1: 125pcs (50 red, 50 blue, 25 yellow) - Red Connector size: Suits cable / conductor cross sections 22-18 GA - Blue Connector size: Suits cable / conductor cross sections 16-14 GA - Yellow Connector size: Suits cable / conductor cross sections 12-10 GA Style 2: 200pcs (100 pink, 100 blue) - Pink connectors suit cable/wire size: 0.5-1.5mm², 22-18 AWG - Blue connectors suit cable/wire size: 1.5-2.5mm², 16-14 AWG Specifications: - Material: Adhesive-lined heat shrink tubing - Dual-walled design: Polyamide outer layer and hot melt adhesive inner layer (3:1 shrink ratio) - Ensures secure crimps - For best results, use a heat source until the tubing shrinks and the adhesive flows to fill gaps - Standard crimp and seal heat shrink butt connectors - Allows visual inspection, prevents corrosion, and provides a waterproof seal