Yantra is the Sanskrit word for \instrument\ or \machine\. The meaning is contextual. Much like the word 'instrument' itself, it can stand for symbols, processes, automata, machinery or anything that has structure and organization. In Hinduism yantras have great importance. There is a yantra for almost every god and every problem like if you are suffering from financial problems, you can keep a sriyantra and chant its mantras...you will notice the change .
Hindu religious products
At Devshoppe , we are making yantras from generations. Our yantra designs are most accurate and mostly taken from old books/texts . Once we choose the yantras from texts , these designs are cross checked by our gurus and once they are satisfied and give their approval , we make negative of these yantras . After making negatives these yantras are etched on metal plates ( copper, brass ) .

But keeping an raw yantra is not enough, one should follow proper rituals like mantra chanting to get desired results. Unless yantras are energized and charged by mantras these are metal plates only and have low energy.
One should take care that these yantras shouldn't be touched by dirty hands . We don't recommend to change the place of yantras too often. Ladies should stay away from them during menses. The yantras worn on body should not be carried to toilets during long calls and short calls. One should remove the yantras before going to toilet.
Similarly, we also recommend people to take off the yantra at night ( if worn on body in pendant form ) , next morning after all daily tasks bath etc wear this again.
Buy all authentic yantras at www.devshoppe.com