Thunder Group Excellante 5 Caster Trash Can Dollies, 18-Inch by 6-Inch, Black Plastic Made out of plastic for its light weight and durability Trash can dolly is rollable, making transportation of large trash cans a breeze Less strain on your back when carrying heavy loads of trash Features 5 wheels for maximum pushing capacity and easy steering Optional: Perfect Fit For Excellante 44 and 32 Gallon Round Trash Can (Amazon ASN # B003RRX5GY and B003RRX5FK).