This is a new interlocking block set from Block Tech's Tiny Travel product line. The set is called Colesseum and includes 586 plastic micro blocks. It is compatible with other Micro Blocks and features a display plate, making it a collectible item. The set is recommended for ages 8 and up and was manufactured in 2023 in China. The theme of the set is travel and it features the Colesseum as its main attraction.

Please see the photos for better details. 

Smoke-free and pet-free home, well... we have a fish but he doesn't smoke or play with things around the house.