Features: 1. Help links two single stroller into a double stroller. Let two babyzen carts walk side by side, turn or go straight. 2. Suitable for round and oval tubes, may not be suitable for square tubes. Applicable for the rack with a diameter about 1-4cm. 3. Innovative design: By switching the lock button, the connector's links clips can adjust its length within a certain range to accommodate different stroller distances. 4. It can be used for theme parks, suitable for the nanny or parents who need maximum flexibility. 5. When there is only one person in the family who needs to take two infant on a trip at the same time, the stroller connector will come in handy. 6. Easy to install and disassemble. With this stroller connector, you can takes two babies to go shopping. Specification: Material: Steel Color: Black Length: approx. 20cm/7.87in; 23cm/9.05in; 26cm/10.23in Note: 1. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you