PosTVac Mach Ring #7 Large

Mach Rings.

Thick centre, creating more tension than the PTV Ultimate Rings. Designed for Pos-T-Vac Ring Loading System. May be used with the ErecAid Systems – manual loading only. Do not use with the ErecAid Ring Loading device. Stretch onto cylinder with fingers and thumbs.

PTV Mach #7 – Large 11.3mm (.445′).