[TWIN STROLLER CONNECTORS] - This connectors set includes 3pcs connectors. Easy to assemble and install on baby cart, makes two baby stroller connect firmly, turn two single strollers into a double stroller for more convenient control. [SIMPLE INSTALLATION] - Just attach the connect tube to strollers and press the lock button to firmly lock the iron pipe to make it install tightly. It wont easily get loose while pushing the twin stroller. [SUITABLE CROWD] - Perfect choice for parents or other people who need to take two babies go out. This connector kit makes it easy and possible for one person to control two stroller. No more worry about bringing two babies out of the house at the same time. [WIDE COMPATIBILITY] - Works great with 98% umbrella strollers and a few high landscape stroller, perfect for two identical strollers. NOTE: Each Baby Stroller Connectors has 3 adjustable positions: 20cm/23cm/26cm in the centre, suitable for stroller frame tubes with a diameter of 1-4cm. About us--- Thank you for your choice. If you encounter any problems during the purchase process, please contact our customer service in time. We will solve your doubts at any time. I hope you can have a pleasant shopping experience, thank you.