Weight and size restrictions for carry-on rolling duffle bags on airplanes can vary depending on the airline and the specific flight. However, there are some general guidelines that most airlines follow.

In terms of weight, most airlines have a maximum weight limit of 22 to 40 pounds (10 to 18 kilograms) for carry-on luggage, including rolling duffle bags. Some airlines may also have a lower weight limit, so it's important to check with your airline before you travel.

In terms of size, most airlines have a maximum size limit of around 22 x 14 x 9 inches (56 x 36 x 23 centimeters) for carry-on luggage, including rolling duffle bags. However, some airlines may have slightly different size limits, so it's important to check with your airline before you travel.

It's worth noting that if your rolling duffle bag exceeds the weight or size limit set by your airline, you may have to check it in as checked luggage, which may incur additional fees. Therefore, it's always a good idea to check your airline's specific restrictions before you pack and head to the airport.