Product Name: Space Maintainers
Model: 32#-41#
Material: Metal
Description: Dental Orthodontic Braces Preformed Space Maintainers with Band and Loop U&L32#-41#

Package Contents:

10 sets of 40 in total 
Second Molar space maintainer kit contains 4 of each set (2 maintainers for upper and 2 for lower in each set),10 sets of 40 in total:
U32, U33, U34, U35, U36, U37, U38, U39, U40, U41--two of  each set
L32, L33, L34, L35, L36, L37, L38, L39, L40, L41--two of each set

FDA Statement:
The sale of this item may be subject to regulation by the U.S. Food
and Drug Administration and state and local regulatory agencies.
So you can bid it on this item only if you are an authorized purchaser.
If the item is subject to FDA regulation,We have to verify your status
as an authorized purchaser of this item before shipping of the item.
Thanks for your understanding!