Auto, Clic & Rise Stroller - On basket attachment bar between the rear wheels

Nia - On a white sticker located on the rear of the basket. To access it, flip your stroller over and unzip the basket fabric. Then turn the stroller back upright - the sticker will now be visible on the top of the rear bar. The serial number begins with JB

Cove & Breez - On the tube next to the handle

Coast & Wave - On the tube on the underside of the footrest

Dune & Reef - (remove the fabric basket) On the horizontal bar between the rear wheels

Jet - Left hand bracing tube on lower inside surface

Pop & Zest - Underneath the X bar

Tide - On the cross bar between rear wheels OR underside of Seat Unit OR under the front of the Carrycot