WIDGETCO 1/4" x 1" Screw Thread Protectors, White - works w/many Hurricane Shutters

do you have any like this in smaller quantities?

My current covers measure 1/4 by approx 1 1/4 length. Do yo have any that length or is that length when put against a ruler?

Any tools to put on or remove it as it's quite tight?

Are these vinyl or plastic?