Use this kit when you want to connect another brand of stimulator to an ElectraStim sex toy. Your stimulator will have a cable that has 4mm banana plugs or straight pins and use electro sex toys with 4mm inputs.
These adapters slide onto the 4mm banana connectors converting them to 2mm pins. This allows you to use your existing stimulator with ElectraStim sex toys as well as other brands using 2mm connection. This kit includes 2 adapters with 4mm input and 2mm output.