Size:

Outer diameter 1.5mm, hole 1mm, length 20mm to 45mm;

Outer diameter 2mm, hole 1.3mm, length 20mm to 50mm;

Outer diameter 2.5mm, hole 2mm, length 20mm to 40mm;

Outer diameter 3mm, hole 2.3mm, length 25mm to 45mm;

Outer diameter 4mm, hole 3.4mm, length 30mm to 45mm.

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