3-Piece Double Stroller Connector with Adjustable Safety for Baby Stroller Accessories Universal Description: [PERFECT DESIGN]: Connector connecting clamps can adjust its length within a certain range to accommodate different distances. [HIGH QUALITY]: Made of high quality material, durable. [APPLICATION]: two single in double. Let the two carts side by side, turn or go straight. When there is only 1 person in the family who needs to take two people at the same time, the connector will come in handy. With this connector, you can take your two little ones shopping. [APPLICABLE]: Suitable for round and oval pipes, may not be suitable for square pipes. It can be used in amusement parks, suitable for nannies or parents who need maximum flexibility. Specification: Material: Size Chart: Universal: length 20 cm/7,87 inch For yoyaplus: Length: 12,8 cm/5,04 inch Width: 5,4 cm/2,13 inch Pore diameter: 2,8 cm x 1,1 cm/1,10 inch x 0,43 inch For: Length: 16,8 cm/6,61 inch Width: 5,7 cm/2,24 inch Pore diameter: 2,9 cm/1,14 inch 3,1 cm/1,22 inch For: Length: 16,8 cm/6,61 inch Width: 5,7 cm/2,24 inch Pore diameter: 3,1 cm/1,22 inch The package includes: 3 pieces of connectors for children