This is a set of Artec Blocks, large size (approximately 4 cm per side), with 60 pieces (50 squares, 10 triangles) of L-blocks. Unlike regular blocks, the studs and holes are not simply arranged, so it's a bit challenging, but once you get used to it, even young children can enjoy creating various shapes. The larger size eliminates the risk of small children swallowing them. Made in Japan, for peace of mind. All blocks have been wiped with alcohol and the insides cleaned, but due to the nature of the blocks with many studs and holes, some dirt may remain. There are no breaks, but some blocks may have slightly loose connections, and there are some scratches and wear from normal use. They will be shipped in the condition shown in photo 6. Please consult if you have any preferences for shipping methods such as Yu-Yu, Raku-Raku, or time-specific delivery. Price reductions are not accepted. Thank you for your understanding.