4PC Cup Rocket Set

• The special design enabled cup to install in smoothly and easily, eliminating damage to the O-ring cylinders.
• Applicable :
Ø9/16″ (14.4mm~16.0mm)
Ø5/8″ (15.9mm~17.5mm)
Ø11/16″ (17.5mm~19.1mm)
Ø13/16″ (20.7mm~22.4mm)