Including 1 cage, 4 rings, 1 lock (with keys).

Ring has 2 types can be chosen: flat ring, curved ring.

Ring sizes are about 43 mm, 46 mm, 49 mm, 51 mm.

Super small cage length is about 45 mm, inner diameter is about 34 mm.

Small cage length is about 65 mm, inner diameter is about 39 mm.

Standard cage length is about 85 mm, inner diameter is about 39 mm.

Long cage length is about 95 mm, inner diameter is about 39 mm.

Max cage length is about 105 mm, inner diameter is about 39 mm.

These sizes may have a little error because it's measured by hand.

Weight is about 100 grams.