No tools required! Great for mailboxes, railings, posts, columns and more. Super-strong adhesive replaces screws and firmly adheres to metal, plastic, wood, brick and other surfaces. Accepts staffs 5/16 in. or smaller making it a great size for small flags, pennants, pin-wheels, spinners, and windsocks. Measures 3/4 x 4 in. and features safety DOT reflector. Not recommended for use on delicate surfaces or wallpaper. Adhesive is semi-permanent; to remove cut with knife, thin wire or floss. Made in the USA.