never needs sharpening, is super strong and produces a clear dark line. Mechanism automatically advances lead directly from storage chamber. 4mm tip design makes it ideal for use with rulers and templates. Please recycle packaging. Don't forget! World's No. 1 selling lead. Pentel Super Hi-Polymer Lead. Visit us at www.pentel.com. Limited Lifetime Warranty (Valid in USA only): Each Pentel product is warranted for life against failure due to defects in materials and workmanship. For warranty servi

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