[Superior Quality] -The 2-wire jelly pads are made of premium plastic, including a sealant gel inside the case which promises an airtight environment for drivers. Tap-off connectors can crimp to avoid twisting and stripping wires, it's a good, low-cost product and much better than rusting dominoes, they can assemble hard-to-solder cables as well. [Gel Filled Design] -Sealed wire fittings are gel filled, which allows them to work perfectly against moisture and corrosion. [Applicable Size] -Connection terminals with clamp contacts are applicable to conductors having 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] -Electrical conduit fittings are easy and quick to assemble at least risk of moisture by simply inserting the splice wires into each hole and then pushing the yellow button into the plastic housing transparent. [Various Occasion] -Signal transmission connectors are applicable perfectly to telephone cables, alarm cables, 12v cables, speaker cables and other similar cables. The connectors can also be in versatile use for the Garden, Invisible Dog Fence, underground laying and many others. Product Feature: -Made of premium plastic, including a sealant gel inside the case that promises an airtight environment for drivers. -Applicable For 2 cables with an internal diameter of 0.4mm to 0.7mm. -Easy and quick assembly. Specifications: Color: Transparent and Yellow Size: -From 0.4mm to 0.7mm (Internal diameter) -1.52mm (Maximum external diameter including the insulating layer) Package Included: -200 * Cable connectors