PEN SIZE. MUCH SMALLER THAN WHAT YOU SEE AT A DRUGSTORE. YOU WON'T FIND THEM IN CANADA. I'll STERILIZE IT RIGHT IN FRONT OF YOU WITH UV LIGHT OR RUBBING ALCOHOL OR BOTH. NEGOTIABLE. SAFER TO BUY FROM ME THAN FROM A CROWDED STORE. TOUCH-LESS TRANSFER, GLOVES AND MASK. VOLUNTARY SELF ISOLATION MANY MONTHS. PET AND SMOKE- FREE HOME. IF YOU SEE THIS AD IT'S AVAILABLE. LEAVE A NUMBER PLEASE. I MIGHT DELIVER,. PLEASE VIEW MY OTHER LISTINGS - IF YOU'LL TAKE OTHER ITEMS I'LL GIVE YOU A BETTER DEAL. SINCE THEY ARE SO SMALL, THERE IS A SPACE BETWEEN THEM AND THE MASK SO THEY DON'T FOG UP.