Teachers and trainers find this award winning two-sided dry erase paddle engaging, easy to clean and store, and great for active learning. It's lightweight and perfect in size for both young students and adults. The set supports a wide variety of interactive and fun learning applications, and give quick and effective assessments. Each Kwik Chek™ Kleenslate Classroom Set comes in its own storage box complete with 24 hand-held white boards. Details:Pack of 24PlasticSaves paperNo gradingReusableClean stubborn marks with water, few drops of dish soap and a soft cloth24 low odor/non toxic KleenSlate dry-erase markers with attachable erasers