The Mati Envelope by Felix Schellenberg

"This is an extremely clever envelope. Indeed, it is a peek envelope, but so very different from what most are used for. As the blurb states, there are no switches and everything is in plain sight the whole time. This extraordinarily useful peek envelope is highly recommended for all working mentalists." - Jheff
"This book is great, beautifully laid out and a real joy to read. An excellent treatment of an excellent principle!! - Dave Forrest (UK)
"Very clever concept..." - Pablo Amira (Chile)
"In a word: brilliant!" - Jan Forster (Germany)
"Elegant and compelling!" - Dr. Todd Landman (UK)
"I'm impressed - a fine device and very deceptive. I certainly recommend this." - Tony Razzano (USA)
The Mati Envelope is a brandnew envelope peek system which allows (not only) for an extremely clean and devious peek of any information written on an untouched slip of paper, sealed shut into a completely opaque envelope! Everything is done slowly and in plain sight - yet you still obtain a full stealth peek...
But there's even more to the The Mati Envelope...
It is one of those rare envelopes that can be used when a peek alone is not enough, e.g. when you need to hand out everything immediately and even have the audience themselves tear their envelope open afterwards.
Imagine the possibilities The Mati Envelope offers in the classic Three Envelope Test, for Pre-Show work, Q&A, Drawing Dupes or Pseudo Psychometry...
Completely invisible and devious peek!
Make your own at home!
Clever out-of-the-box thinking!
Clear and concise step-by-step instructions with many photos!
Extremely versatile principle!
Key Features
Performer never touches the paper
Spectator herself seals the envelope shut
Envelope remains in the spectator's hand
In the end, the spectator opens the envelope herself, taking out her card
Billet and Envelope are always in plain sight
No switches
No 'pads' or 'boards'
No 'writing surface' whatsoever
No sneaky moves
No sleights
100% invisible peek
Can be performed (almost) surrounded
95% fully visible peek area
Completely clean ending
Spectator can keep paper and envelope as souvenirs
Adaptable tool for many routines
"Really great!!! ...all the nuances make the Mati something very special indeed. The Mati Envelope really is a keeper!" - Stefan Olschewski (Germany)
"Wow...! Well constructed, practical - I wish I had thought of it!" - Peter Turner (UK)
"...an easy and very clever device to create amazing routines!" - Luca Volpe (Italy)
"Really clever! A great tool! Versatile and devilish - Kudos!!" - Thomas Heine (Germany)
"Bravo, bravo, bravo - it is brilliant, and I will use it!" - Elio Alexander De Grandi (Italy)
"...an interesting tool to have in your arsenal. It does exactly what the ad says. I'm sure many performers will find this a welcome addition to routines they already do." - Greg Arce (USA)