🔴 Royal Mail Letter & Large Letter Size Guide – 3D Printed Postal Sizer – UK Post Template Gauge

📦 Ensure Your Post Qualifies First Time – Avoid Overpaying!

Take the guesswork out of posting letters and parcels with this precision 3D printed Royal Mail size guide. Designed to quickly check whether your item fits within Small Letter or Large Letter dimensions before heading to the Post Office.

Perfect for:
✔ eBay sellers
✔ Etsy sellers
✔ Small business owners
✔ Home office use
✔ Vinted / Depop sellers
✔ Anyone wanting to avoid excess postage charges

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📏 Size Specifications

Small Letter Slot:
• 240mm x 165mm x 5mm

Large Letter Slot:
• 353mm x 250mm x 25mm

Clearly labelled and embossed for easy identification.

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🛠 Product Details
• High quality PLA 3D printed
• Strong, lightweight & durable
• Smooth edges with rounded corners
• Easy to store design
• Bright red for visibility
• Reusable & long lasting

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💡 Why You Need This

Posting an item just a few millimetres too thick can double your postage cost. This tool helps you:

✔ Avoid Royal Mail surcharges
✔ Save money on incorrect postage
✔ Speed up packing workflow
✔ Improve dispatch efficiency

Ideal for high-volume sellers.

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📦 What You Receive

1 x 3D Printed Royal Mail Postal Size Guide (Red)