Universal
Precision Penis Pump Comfort Cylinder Seal Sleeve Silicone Replacement

Feature:

• 
  

  Creates
  air-tight seal for optimal pumping

• Makes
  pumping more fun

• Compatible with most pumping systems

• Measurements:80mm external diameter,33mm inner diameter,19mm hole

• Can be
  used with any pump cylinder sized 33mm to 80mm

• Material:TPE

• Hypoallergenic

• Color:Black& Clear

Package includ

• 
  

  1 X
  Cylinder sleeve

Description

• 
  This
  super soft and stretchy sleeve fits most penis pump cylinders. It is used
  for adding comfort and creating an airtight vacuum seal. We offer this
  accessory separately so you can upgrade your existing pump or replace an old
  donut if it has become worn out. It can also help you sustain an erection,
  which is important if you wish to increase your size faster.This super soft
  and stretchy sleeve fits most penis pump cylinders. It is used for adding
  comfort and creating an airtight vacuum seal. We offer this accessory
  separately so you can upgrade your existing pump or replace an old donut if
  it has become worn out. It can also help you sustain an erection, which is
  important if you wish to increase your size faster.