Pencil Sharpener,izBuy Electric Sharpener Safety Auto Lock - Battery Powered Sharpener - Great School & Office Supplies For Kids and Adults- FREE 1 Core Sharpener, Creamy White Never worry about over-sharpening! - Automatic idling once the pencil tip is shaved within 0.3-0.5mm/0.01"-0.02",save power and pencil,whats more,you will never worry a pointy tip to destroy your work; Keep Kids Safe!- Auto-off safety lock design,the pencil sharpener stops operating once the shaving tray is removed,this avoid accidentally injury; Large Detachable Sharpener Holder Design - Easy to remove the pencil collection and keep your desk clean; Sharp durable steel blade & large easy-clean shavings tray with faster and stable cutting performance; Power Sources - Powered by 4 AA batteries and suitable for pencils within size 6.5-8mm.