ClassiX Replacement Pad - EP11. ClassiX self-inking Eco stamp has all the great benefits of our traditional P-Series stamp but is constructed with 57% recycled content by weight. Great for offices and banks or any office with high volume stamping. It's great for bank endorsement stamping or file stamping. Makes approximately 5,000 - 7,000 impressions before needing to be re-inked. Your EP11 can either be replenished with ink or you can choose to replace the stamp pad. Use ClassiX Refill Ink only to re-ink your stamp pad.