1, 0.01ct High pricision gem scale, 2, Max Capacity 20g, 3, Scale dvision to 0.001g, 4, ... scale model J112 is a premium quality, sturdy, digital scale,2. It is a patented product, powered by 2pcs AAA batteries ... Jewelry High pricision diamond scale Model J112 is powered by 2 x AAA batteries, Jewelry High pricision diamond scale is available ...