Color: As shown in the First image.Quantity and size : As shown in the title or description.Erasable Gel Pen And Refill Rods For School/officeFeatures: -Smooth Writing and No Dry Spots Left Because Erasable Nature, Can Not Be Used in the Securities and Important Documents Signed Work -Erasable Pen is a Special Refill, Which is Different from the Ordinary Refill. Ifthe Refills OfErasable Pen Experiences High Temperatures (this May Be During --transport)-the Color of Pen Refills Will Change (will Become Milky White), and Even Lead to Refills Can Not Be Written-If You Encounter Such a Situation, You Can Freeze the Pen Refills in the Freezer Compartment-After 12 Hours, the Color of Pen Refills Will Return to Normal.Remove the Refills from the Refrigerator; -you Need to Wait 1-2 Hours, the Refills Can Be Used NormallyFeatures: Writing Point: 0.5mm -Erasable: Yes -Pen Size:Erasable Eraser 3*5.5cm /Erasable Refill 13cm /Erasable Pen 14.5cm -Quantity : (1PcsErasable Eraser+20 PcsErasable Refill+ 6PcsErasable Pen) -Ink Color:blue/Black/Dark Blue -Set: 27pcs -Material: Plastic