We have tested most of the high security transport restraints on the market. The Tube is about as escape proof as they come. The Tube is placed over the hands and then handcuffs are placed on the wrists with the swinging bow running through a D-ring on the cuff of the Tube. The Tube is constructed of rigid plastic, so the subject has virtually no use of his hands. The only escape is to pull your hands through the handcuffs or get some help. You might be able to open the handcuffs with a key using your teeth, but this would be very difficult if the handcuffs were on a belly chain secured to your sides...and you would have to get a handcuff key. Here is the text from our website:
"Minimize the opportunity for your prisoner to smuggle contraband or to gain and use weapons with The Tube. Used at Ryker's Island, Pelican Bay and other high security facilities, and for prisoner transport. The Tube is a Hand Containment System designed to completely encase the subject's hands, preventing the grabbing and use of items such as weapons, keys and other contraband. Each hand is encased in a stiff, reinforced nylon cylinder. Handcuffs or cuffs from a belly chain lock the tube in place. Can be used with a belly chain or a single pair of chain or hinged handcuffs. We have tested most competing products and The Tube is by far the most effective and easy to use.
The Modified Tube is now available for street use and special needs in correctional environments. Useful when a prisoner is required to sign documents. It was developed for use on subjects who are already handcuffed and who are to remain cuffed. An opening in the sleeve accomodates the handcuff chain of an already handcuffed prisoner. The wrist opening is secured with Velcro and a strap and D-ring. The Modified Tube can be used just like the standard tube and will be just as secure."