Size:

1#: Length 24mm, width 11mm, thickness 3mm, weight 2.68g;

2#: Length 24mm, width 11mm, thickness 4mm, weight 2.35g;

3#: Length 20mm, width 8mm, thickness 3mm, weight 1.57g;

4#: Length 14mm, width 8mm, thickness 1.5mm, weight 0.58g

Note: The size and weight are measured manually, so there will be some indirect measurement errors.