If the ink is dry before the office stamp you just received is used, Or you have other questions or suggestions,please contact us directly and we will be happy to solve the problem for you. 【Self Inking Return to Sender Stamp】: High quality self-inking return to sender stamp could mark thousands of smooth impressions before ink needs to be refilled.When the impressions begins to fade,the ink pads could replaceable or re-inkable.Simply push the return to sender stamp down about 5mm,and lock the two sides red buttons,slide ink pad out to refill the ink,reinsert,and push the personalized return stamp down completely.Super ABS hard-wearing plastic frame for long lasting durability. 【Out of the Box for Direct Use - Return to Sender Not At This Address Stamp】:Our return to sender stamps for business supplies is available in red ink and bold design,which is pretty striking.Each return to sender's maximum impression size is about 9/16" x 1-1/2".Our return to sender not at this address stamp has a unique design, and vibrant ink fill ,which provide a crisp,permanent and clear stamping impression on the paper without bleeding. 【Return to Sender Rubber Stamps for Business】:Our return to sender stamps design by an open imprint area which is clear, see-through for fast and precise alignment stamping accurately.There is a large index window on the top of return sender stamp,that shows what the office stamp is and the direction of the business stamp,so you don't confuse with other business stamps.It's great for saving time, giving you the ability to return wrong documents, couriers, packages in a fast effective way. 【Return to Sender Not At This Address Stamp 】:Press down the return to sender stamp for office easily,self inking return address stamp for business works quick and repetitively.When finishing stamping,put the return to sender stamp away until next stamping.The impression rests inside the ink pad,so it isn't easy to dry.Our return to sender rubber stamp are perfect for everyday business work!Great ideal for business office supplies,mail,express,envelopes,package,letter,custom labels and more. 【QUICK SERVICE】: PACKAGE INCLUDE: One return to sender not at this address stamp ,One ink pad which had refilled red ink,One plastic ink pad cap.(Note: If the self inking stamp isn't used for a long time, it is recommended to remove the ink pad from the self inking stamp and cover it with plastic lid for store.)You will get an installed return to sender stamp that can be used directly!(You needn't to install the ink pad)Any problems with our office stamp, please contact us. Bertiveny Office Stamps Self Inking Personalized for Business Supplies Custom Rubber Business Stamps for Office Supplies