Features: Easy to DIY: Just use crayons to draw any pattern you like, then place the finished artwork in the middle of the double layer of the plastic cups. Wide Range of Usages: Works for teachers in any classroom as a keepsake crafts activity for that special holiday project, the ideal gift for your to give for father's Day, Father's Day, grandparents day, teacher appreciation, or any special gift giving occasion Specification: Material: plastic, inner insert paper Size: Cups: 3.3 x 4 inches/ 8.5 x 10 cm Crayon: 9.2 cm/3.6 inches Crayon color: black, red, sky blue, light green, yellow, purple, orange, brown, dark blue, dark green, pink, rose red Package includes: 36 x DIY mugs 12 x Crayons 72 x Blank paper Warm notes: Please note the size detail information before ordering. Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen display. Pointed and small items are included, please keep them away from little kids