This brand new and original Royal Mail Size Guide Ruler includes all parcel sizes, including a small parcel size and large letter size.
It is made of 5mm hard plastic, making it much sturdier to many alternatives. This convenient product will aid any user as you can eliminate any risk of receiving a surcharge payment. If you are unsure on what size your mail item is, simply use our Royal Mail Size Guide Ruler.
Use it in conjunction with your postal scale to never get it wrong again!