Never worry about your favorite pens running out of ink with the DA-PLASTICBF ink refills. Available in blue or black ink and are compatible with any ballpoint pen using a Plastic Butterfly Refill.

• Size: 3.75" L x .05" W
• Ink Color: Black

Never worry about your favorite pens running out of ink with the DA-CROSS ink refills. Available in blue or black ink and are compatible with any ballpoint pen using a Cross refill.

• Size: 4.5" L x .05" W
• Ink Color: Black

Never worry about your favorite pens running out of ink with the DA-PARKER ink refills. Available in blue or black ink and are compatible with any ballpoint pen using a Parker refill.

• Size: 3.75" L x .15" W
• Ink Color: Black