POP MART Labubu the Monsters SpongeBob Series is a single blind box. Characters in this line adopt motifs from the partner film or brand world, while underwater settings accompany the familiar shapes of a sponge, starfish and other friends; a single blind box holds one character that cannot be selected in advance, while the individual format occupies one box and includes no outer group carton. Each box conceals a solid figure based on the collection theme, while the blind-box system conceals the character's identity, with a secret design replacing one regular motif. Underwater motifs frame it.