Allen Sports Premier Aluminum 2-Child Jogger/Bike Trailer
Only $122 (reg. $300)
More product info: 
Lightweight aluminum construction trailer and jogger
2 products in 1 – Includes everything to be used as either a 2 child jogger or 2 child trailer
Safely and comfortably transports two children (max trailer payload 100 lb.)
Quick and easy assembly
Universal coupler attaches to most bicycle