The weight of the ball should be 275 g. +/- 12 g. Each ball will be tested using a scale accurate to within 0.01g.
 
Features
 
Precise Digital Scale with 500g Capacity
Powered by Two AAA Batteries, with a Large Stainless Steel Platform
Large LCD Display with Large Easy to Read Numbers
Highly Accurate with High Precision Weight Sensor
Scale Automatically Turns off After a Period of Non-use
Five Digit Backlit LCD Display, Auto Power off.
Easily Portable for Precision Weighing, Durable, Easily Calibrated and Retains Accuracy over a Long Period.
 
Specifications
Large stainless steel platform
Capacity: 500g
Increment: 0.01g as per BidFed requirement
Scale Size: 127mm x 105mm x 17mm
Units of Measure: g, gn, oz, ct
Calibration: Auto Calibration
Tare Range: Tare Full Capacity
Auto Off (Default): About 4 Minutes off
Power: 2 AAA Batteries (Free Batteries Included)