Extra Lengths - Electro CylinderAdditional lower lengths are available to help in finding the perfect fit, or for use with multiple players. Sizing: Internal diameter (40mm or 50mm): The size refers to the internal diameter of the lower section. 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 circumference by 3. 142 () Length: The

One ’squirt’ with each pulsation

clinical white silicone

Internal Diameter 40mm

SeriousKit SPTs have parts that are machined out of aluminium and acrylic and so are slightly heavier than traditional V2000/Tremblr receivers – the bungee support system allows our SPTs to be used hands free

Sizing:

Adjustable 'telescopic' length to optimise sensation

Polished acrylic separator:

Perineal Electrode:  The perineal electrode comes in a single size

Having an adjustable height glans cup or sound and an adjustable height ring electrode allows accurate positioning for optimal sensation

Choose an internal diameter of 40mm or 50mm - this should be the same as the diameter of your SPT

You can find the bungee support in SPT Extras

Each Electro SPT is fitted with a 4mm banana socket for easy connection