Large:

Length: 7.75 inches

Tentacle A Useable: 6.5 inches

Tentacle A Circumference: 6.5 inches

Tentacle A Width: 2.75 inches

Tentacle B Useable: 6 inches

Tentacle B Circumference: 6.5 inches

Tentacle B Width: 2.75 inches

Combined Circumference: 9 inches