A modification to our original fully lined Electro SPT, re-designed for V2000 and Tremblr owners but also great for use with the SeriousKit Milker. Fully lined for the length of the shaft – but with an open chamber at the cap end. Venus 2000/Tremblr users will need one of our connection hoses, sold separately.

Sizes: 40mm (standard) or 50mm. 30mm as a special order. Lube before use with any water based gel.

Cable connection point for 4mm banana jack on polished comfort ring at base of the cylinder.  The SPT is mono-polar and therefore needs another electrode to complete the circuit.

Sizing:

The size refers to the internal diameter of the acrylic tube. 40mm is by far the standard size.  Due to the way the milker works the sizes are not that critical - as long as the penis will fit inside the acrylic tube when erect. Diameter is calculated by dividing the circumference by π (3.142)