5Pcs Ring Food Grade Eco-Friendly Silicone Focal Beads, Colorful

Size: about The outer diameter is about 2.54-2.56 inches/64.5-65 mm, the inner diameter is about 1.71-1.73 inches/43.5-44 mm, the thickness is about 0.34 inches/9.5 mm, and the hole is about 0.12 inches/3 mm