Size:

Small: Jump ring diameter 6mm, total length 16mm (with jump ring), weight 0.5g;

Medium: Jump ring diameter 6mm, total length 18mm (with jump ring), weight 0.8g;

Large: Jump ring diameter 7mm, total length 24mm (with jump ring), weight 1.1g

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