Size:

Diameter 6mm, Hole 1.5mm, Weight 0.28g

Diameter 8mm, Hole 2mm, Weight 0.56g

Diameter 10mm, Hole 2.2mm, Weight 0.85g

Diameter 12mm, Hole 2.6mm, Weight 1g

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