Common Q&A： This toy has 3 modes of use? 1. The inner sleeve is used in conjunction with the outer shell. 2. The inner sleeve is used in conjunction with the outer shell, and the air holes on the top can achieve the pleasure of sucking and releasing. 3. The inner sleeve is used alone. If the size is particularly large, you can use it this way and it will be more comfortable. so it can satisfy all your fantasies, fly freely and be happy! Does it need lube? When combined with lubricating oil, the effect is better. very easy to clean? Of course, rinse with clean water and dry after use and it can be reused.