Tenive 2 in 1 Double Child Bicycle Trailer 4 Color Choice Constructed from powder coated steel frame and waterproof 600d polyester cover, top features include a locking swivel front tire and full suspension system Full suspension system with ultra smooth-rolling 20" wheels creates a more comfortable ride on most terrain for your kids Hand lock brake system on rear wheel can be used to securely park the stroller, 5 points harness secures children in seat Front wheel swivel for strolling, lock for jogging, or can be removed completely while in use as a bike trailer Suggested minimum child age of 18 months; Max Weight Limit: 88 lb; No tools needed to setup and break down