School Smart Hexagonal Non-Toxic Lead-Free Starter Pencil with Latex-Free Eraser, 13/32 in, No 2 Tip, Pack of 12 Portable electronic balance with LCD display measures in both standard grams (g) and Newtons (N) Recessed sample tray with stainless steel pan, weigh-below hook for weighing bulky items or to determine specific gravity, and overload protection up to 200lb Flip-top draft shield protects from drafts and from breakage during stacking, and security bracket prevents theft or re-location Stackable design and load cell lock provide security during transport and storage Powered by three standard AA batteries or the included AC adapter for increased mobility Our line of high quality instruments ranges in capacity from 100 to 5000 g and in readability from .001 to 1 g Takes 3 AA batteries (not included)