Premium Quality: -The 2-wire jelly pads are made of premium plastic, including a sealing gel inside the case that promises an airtight environment for drivers. The branch connectors can be crimped to avoid twisting and stripping the wires, it is a good product at a low price and much better than rusting dominoes, they can also assemble cables that are difficult to solder. Gel Filled Design: -The waterproof wire fittings are filled with gel, which allows them to work perfectly against moisture and corrosion. Applicable Size: -The connection terminals with contacts are applicable to conductors with an internal diameter of 0.4mm to 0.7mm and a maximum external diameter (including the insulating layer) of 1.52mm. Easy and Quick Assembly: -Conduit fittings are quick and easy to assemble with less risk of moisture by simply inserting the splice wires into each hole and then pushing the yellow button into the clear plastic housing. Miscellaneous Occasion: - The signal transmission connectors are applicable perfectly to telephone cables. audio cables, alarm cables, 12v cables, speaker cables and other similar cables. The connectors can also be in versatile use for Garden, Invisible Dog Fence, Underground laying and many more.