ID roller stamp is a good substitute for crushers, safe and environmentally friendly. Roller stamp can cover the important address and phone number of your bank bills, utility bills, and prevent information from leaking. Confidential address blocker can the best protection for your information security. Information anti-leakage stamp is the perfect gift for family, and yourself. Identity anti-theft stamp is mini and portable. address blocker roller come with 4 refills ink(2ml per unit, you can add ink ), when ink runs out, ink can be refilled in the privacy roller side. Normal water-based ink does not same protection. size: Confidentiality Stamp: 60x62x30mm Medium Confidentiality Stamp: 60x37x30mm 2ml ink: height 4.5cm, diameter 1cm : plastic colour: yellow Package Contents: 2 x Confidential roller 4 x Refill Inks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.