This is Goyard's Saint-Sulpice Card Slot. It is made of navy leather material and has a compact design that is convenient for storing cards.
Item
Brand: Goyard
Item: Card Slot
Category: Unisex
Type: Compact Card Slot with Pocket
Model: Saint-Sulpice
Line: Saint-Sulpice
Color: Navy
Material: Leather
Width: 10.5 cm (4.13 in)
Height: 7.0 cm (2.76 in)
Item Condition Condition: B
Condition details: There are scratches, dirt, and scuffs due to use, but this item is suitable for normal use.
Please check images for detailed condition.

Condition Guide:
S: Like new by the store's standards
SA: Almost unused, overall pristine
A: Excellent condition
AB: Great condition, minor signs of use
B: Good condition, signs of wear from normal use
C: Noticeable scratches, dirt, or signs of use
D: Heavily damaged or in need of repair