Groove 3.3mm Colored Pencils feature an innovative ergonomic shape with natural grip zone. Off-set slide guards for thumb, index and middle fingers support an optimal writing hold even after sharpening. Pencils have a 3.3mm core size and slim wood casing. Break resistant core holds up under pressure. AP certified non-toxic. Each pack includes 12 pencils in assorted colors. Sold as 6 packs for a total of 72 pencils.