You will need to install a user script manager extension to install this script.
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive
// @require https://greasyfork.org/scripts/410044-space-hair-sniper/code/Space%20Hair%20Sniper.js?version=841849
this is a script that auto buys this https://www.roblox.com/catalog/564449640/Beautiful-Hair-for-Beautiful-Space-People item at set price you should be able to set the price you want to snipe it as