Size:
Diameter 6mm, thickness 1.4mm, jump ring 3.7mm, weight 0.21g;
Diameter 8mm, thickness 1.4mm, jump ring 5mm, weight 0.32g;
Diameter 10mm, thickness 1.8mm, jump ring 7mm, weight 0.6g
Note: The size and weight are measured manually, so there will be some indirect measurement errors.