[Adjustable] Adjust spacing for 1cm tape from 4-18cm, and for 2cm tape from 4-16cm. Accommodates single tape rolls up to 8cm wide. [Easy to Use] Apply two parallel lines quickly and easily from a standing position. Pointer on front wheel guides users along marked lines for accuracy. [Sturdy and Durable] Made with stainless steel body and high quality rubber roller for long-lasting use. [Perfect Circles] Easily create arcs and circles with adjustable camber screw between front wheels. [Wide Application] Great for marking fields, garage parking, epoxy floors, and more. Can be used with various tapes and papers for precise edge marking.