[Product weight] : 3mm about 0.05g

4mm is about 0.09g

5mm is about 0.20g

6mm is about 0.30g

                   7mm is about 0.43g

8mm is about 0.58g

10mm is about 0.89g

[Product size] : 3mm(diameter 3.5* thickness 1.6mm) (inner diameter 1.5mm)

4mm(Diameter 4.5* thickness 2.1mm)(inside diameter 1.9mm)

5mm(Diameter 5.5* thickness 2.7mm)(inside diameter 2.3mm)

6mm (Diameter 6.5* thickness 3.7mm)(inside diameter 2.8mm)

7mm(Diameter 7.5* thickness 3.8mm)(inside diameter 3.5mm)

8mm(Diameter 8.5* thickness 4.4mm)(inside diameter 4.1mm)

10mm(Diameter 10.5* thickness 5.3mm)(inside diameter 4.8mm)
Tips: The size and weight are measured manually, there may be errors, the value is for reference only, please refer to the actual object!