The uni-ball Signo 307 Rollerball is a retractable gel pen which prevents the nib from drying out and allows leak-free storage. It uses Uni Super Ink that makes it waterproof, fraud resistant and permanent perfect for legal documents or for scrapbooking. It's rubberised grip makes it comfortable to use for long periods.

• Gel ink Rollerball Pen
• Highly-secure waterproof pigment gel 'super ink'
• Comfortable rubber grip
• Push-retract mechanism