T-pins for wigs and hairpieces are designed to hold wigs securely in place on a styrofoam or canvas blockhead. Allows you to style with ease and also prevents slippage from the styrofoam or canvas blockhead when you travel with your wig or hairpiece.T-pins for wigs and hairpieces are designed to hold wigs securely in place on a styrofoam or canvas blockhead. Allows you to style with ease and also prevents slippage from the styrofoam or canvas blockhead when you travel with your wig or hairpiece.