Disclosed is a soft, flexible, photo, face, or image recognition flash card game and system for children, adults, and special needs individuals. The hydraulic connector includes a tubular member and a longitudinal insert in the tubular member with hydraulic fluid in the tubular member between the insert and the member. The method may process the first data to manipulate a Bloom filter into a state from which membership in the set of references can be assessed. The image data thus contracted is inputted into a JPEG encoder and subjected to a DCT process and a quantization process for each block. Accordingly, wine bottles stored in the wine refrigerator are prevented from being shaken by external vibration, so that unique flavor of wine is maintained.