OUERMAMA 3 Sets Disappearing Silk Fake Thumb Tip Magic Trick Reality Magician Finger Thumb Tip with Red Silk Magic Props

I bought it and received but the package was empty, what should I do?

Does this come with instructions for the magic trick?

is this small? I have large hands

2 questions: Is the thumb material soft and squishy like silicone, a hard plastic, or something in between? Is it sized for children or adults?