The egg shape index detector part of the core components of two rods mainly determined by eggs and egg-shaped fixed frame components. In the measurement of longitudinal diameter and transverse diameter length eggs and automatically calculates the egg shape index according to the formula. Purposes: for the determination of egg shape index. The use of this instrument can quickly and accurately calculate the standard egg shape is oval, like a circle or partial spherical or elongated cylindrical shape. Technical parameters: ■ egg shape index = egg longitudinal diameter (major axis) / egg diameter (minor axis) ■ The egg-shaped detector tests showed that the results have egg-shaped number (60-100) and the egg-shaped ID value of number (0-8) in two ways. Egg-numbered index in Japan represent a common egg-shaped, which is calculated as egg-shaped ID = egg diameter (short diameter) / egg longitudinal diameter (long diameter) X100 egg shape index = 1 / X100 egg-ID number 012,345,678 egg-number 1,009,590,858,075,706,560 egg shape index 1.00 1.05 1.11 1.18 1.25 1.33 1.43 1.54 1.67 Classification Number SML Note: S, M, L does not indicate the size of the label eggs ■ No. 0-3 egg-numbered 100-85; egg shape index 1.00-1.18; classification symbol is S; eggs were like spherical; ■ No. 4-5 egg-numbered 80-75; egg shape index 1.25 1.33; Classification Number of M; eggs were normal oval; ■ No. 6-8 egg-numbered 70-60; egg shape index 1.43-1.67; classification symbol is L; egg has an elongated shape; Size: 240 × 280mm Weight: 1.8kg