Blindfolds

Blindfolds - (See also: Full-Head Hoods ) Play which involves temporarily blocking the submissive's sense of sight. This type of play is essential when everyday objects are used to give unexpected sensations.   Blindfolds come in many forms from the more expensive leather (full-head type) to the more inexpensive handkerchiefs, scarves, bandages.   Safety Note:   Do not make the blindfold too tight as to put pressure on the eyeballs.   Although some people take blindfolding in stride, it can have unpredictable psychological effects and be extremely frightening for some people.  

Blindfolds is a tool in lite play and intense Play its just a sensory that is taken away and highthen the slaves experience .I use this in most of my sessions to play with my slave mind. it easy and everyone enjoys it. and if not it very easy to take off. so try it !
as for the full-head hoods this is something that you and you slave can work up to due and not have Claustrophobia. 
Done right it can be very enjoyable to the slave .Having the world closed off ,they can go inside of there Brian and have there own mind play.
I have blindfolds to full leather hoods. The slaves that trust you like it .Also having hand signals to let me know how then feeling. Communication throw all sessions is the main theme to a happy Mistress ,slave relationship.