50 Gram Scale Calibration Weight [check scale for accuracy and calibrate]
50-Gram Chrome Scale Calibration Weight. Use to check your gram scale for accuracy. Depending on your scale’s requirements (check the manual) this could also be used for calibration.
Update: Since this post was published the price, availability or promotion has changed. Check the product page for current description, price and availability. Also: Today’s Deals on Amazon
50-Gram Chrome Scale Calibration Weight
Also: Homebrew Scale Deals, Discounts and Coupons & Reviews
Or a nickel weighs 5 grams. Either way.