Wooden K-M lock 5 or 9 pieces/set gift boxed classical disassembly building blocks educational toys children’s gifts

Pre-purchase notice:

K-M lock is made of wood material. The product itself is different in material and style. The different types of elastic are different. The problem of tightness is not a quality problem. It does not support return and exchange. The wooden products may exist due to their workmanship and material problems. Returns are not supported without affecting usage.