SILVER TOPPER IS 4.5MM ACROSS  BOTTOM DISC IS 5MM ACROSS POST IS 16G (1.2MM)   LENGTH 8MM POST THIS AUCTION IS FOR A CLEAR FLEXABLE BIOPLAST LABRETS (OR MADONNA) WITH AN INTERNAL PUSH / PULL SYSTEM TOP. IT IS 16G (1.2MM) 5/16" INCH (8mm length post) BIOPLAST FLEXABLE POST.  THE TOP IS A PULL OUT AND PUSH IN TYPE SO NO THREADING TO TOUCH THE PIERCING.  THEY ARE MADE OUT OF BIO PLAST POST AND REAL STERLING SILVER TOP.  IT IS FLEXABLE SO IT IS EASY TO PUT IN. TAKE A LOOK AT THE PICTURE AND SEE HOW NICE IT LOOKS. A PIECE LIKE THIS WOULD GO FOR MORE THAT $29.00 AT ANY STUDIO. THIS AND ALL MY JEWELRY IS NEW AND HAS NEVER BEEN WORN. THE PICTURE DOES NOT DO THIS PIECE JUSTICE. SHIPPING IN A PADDED MAILER AND A BOX.  SL 006 8MM SINGLE