Why settle for plastic stam cups when you can buy plastic yisroel and ensure that you Pesach is chometz free.
When you use plastic stam cups on Pesach, you face the real danger of using something that contains chometz. A worker may have been eating chometz and accidentally dropped it into the vat of molten plastic. A rodent, carrying chometz may have fallen in at any point of the manufacturing process. Would you risk drinking from something that may contain rat, or, worst of all, chometz?
At our factory, we have mashgichim stationed at every critical area of the manufacturing process to ensure that such accidents never happen. We pride ourselves on manufacturing the best, cleanest and chometz free plastic yisroel cups possible.
Don't give in to your yetzer hara, buy plastic yisroel!