These keyhole ear weights are made from opalite glass. The smaller size will fit lobes 9/16" or larger with an insertion gap of 5mm. The larger size will fit lobes 11/16" or larger with an insertion gap of 8mm.
9/16" size
Dimensions: 27mm W x 36mm H x 13mm D
Weight: approximately 21.2 grams each piece
11/16" size
Dimensions: 32mm W x 45.5mm H x 15mm D
Weight: approximately 33.4 grams each piece