【Multiple-color Carpet Marker】Our carpet marker set contains 62 pcs with 36 pcs Numbers (1-36) and 26 pcs Letters (A-Z) spot markers in 6 different bright colors, perfect to group students and learn Colors, Alphabet, and Numbers. It’s also perfect to catch the eyes of students and keep a safe distance for them. 【Vibrant Color Attraction in Class】Designed multiple groups of bright colors to mark the EXACT spot for students. Easy to require kids and adults to know where to return to as their spot to sit or stand, also can reduce the frequency of verbal reminders and provide visual cues to students instead. 【Premium Quality and Durable Use】Unlike the others, our spot markers tightly catch most carpets and even some area rugs without adhesive. Made of high-quality nylon material, it won’t damage your carpet. They are only 4” in diameter, flexible, adhesive, non-slip, and safe for kids. It’s ultra-easy to apply and then remove, just grab the disc edge and pull it up, durable for hundreds of times of uses.