Summarythis is a tool to cut strips of plastic from a plastic bottle such as a coke bottles. i included a plastic blade but u may want to use a metal blade. lay the blade between the two blade holders and cover with the cover. you may have to clamp to a table. here is a link to a utube vid showing an example of what this is for.: https://www.youtube.com/watch?v=yLt-ebcNUnECustom Sectionwhere i got the idea.... and to give you an idea of what this is tool for.