Piece of silicone that detach

I used 2 times, I actually found it very convenient though small but use the 2nd I found pieces of silicone in my pastry. :( And as and other small silicone tip stand and fabric can see below :( I wonder from where came to red in my dough!
Note that I am served me to spread dough sanded and I did not even use the oven.
reading the other reviews, I feel like fell on a defective product because all other comm are rather positive and nobody seems to have the same problem as me.
For me this is money screwed through the window /