81 Pcs carpet circles for classroom in total, 4 in diameter and 9 different vibrant colors help learn colors, quickly and exactly identify sitting, queueing or standing locations.^ These carpet marker spots adhere firmly to carpet and could be vacuumed over without detaching from the carpet.^ Could be removed easily without causing damage; Flat and smooth top, easily clean right off, no crinkle; Washable, Reusable and Durable; You could also write on carpet spots for classroom with marker pen.^ Produced with safe, non-toxic and extremely rigid industrial grade Nylon; Hook and Loop sticks to most carpets; Not for use on shaggy carpet;Come with a drawstring bag to store and carry out.^ carpet dots are great for Teachers Classroom Activities, also suitable for indoor/outdoor gamse and activities, such as agility training, exercise drills, color tracking, games, dancing, sports and moreMake your activities pop, active, and organized ^