Color classification
                        
                                                            Single position (single function) [sponge comfort version]]
                                                            Double bit (single function) [sponge comfort version]]
                                                            Double position (dual function) [sponge comfort version]]
                                                            Three people (single function) [sponge comfort version]]
                                                            Three people (dual function) [sponge comfort version]]
                                                            Four people (single function) [sponge comfort version]]
                                                            Four people (dual function) [sponge comfort version]]
                                                            Single position (single function) [latex exclusive version]]
                                                            Double bit (single function) [latex exclusive edition]]
                                                            Double bit (dual function) [latex exclusive edition]]
                                                            Three people (single function) [latex exclusive version]]
                                                            Three people (dual function) [latex exclusive version]]
                                                            Four people (single function) [latex exclusive version]]
                                                            Four people (dual function) [latex exclusive version]]