Features: 1) Ground edges 7101 2) Unground edges 7102 3) Single concave, ground edges 7103 4) Double concave, ground edges 7104 5) Frosted one end on one side, ground edges 7105 6) Frosted one end on one side, unground edges 7105-1 7) Frosted both ends on one side, ground edges 7106 8) Slide frosted one end on both sides, ground edges 7107 9) Frosted one end on both sides, unground edges 7107-1 10) Frosted both ends on both sides, ground edges 7108 11) Frosted on one side, ground edges 7110 12) Color frosted one end on one side, ground edges 7105-S 13) Color frosted one end on both sides, ground edges 7107-S