OSB-621-1" - Ventilator Setters
OSB-621-1" - Ventilator Setters
OSB-621-3/4" - Ventilator Setter
OSB-621-3/4" - Ventilator Setter
OSB-622 - Ventilator Punch
OSB-622 - Ventilator Punch
V1-1" - Ventilators 1"
V1-1" - Ventilators 1"
V1-3/4" - Ventilator
V1-3/4" - Ventilator

Size: 
#V1 - 3/4"
#621-3/4 Hand Ventilator Setter
#V1 - 1" Ventilator
#621-1" Hand Ventilator Setter

A MUST for vinyl and leather cushions.  Allows air to escape when cushion is compressed.