Amazon.com: SOLEJAZZ Moving Furniture Dolly Connectable, 440 LBS Capacity Piano Dolly, Heavy Duty 4 Wheel Cart for Heavy Furniture, Black, 1 Pack : Industrial & Scientific
Snap-Loc 1600-lb 4-Wheel Black Plastic Dolly in the Hand Trucks & Dollies department at Lowes.com
Tri-Wheel Dolly | Heavy Duty Three Wheel Moving Dolly 2" Wheels - Mapp Caster
Heavy Duty Auto Dollies 2500 Lbs. Capacity (Set Of 4) – Source 4 Industries
Amazon.com: Goplus Moving Dolly, Heavy Duty Furniture Rolling Mover with 4 Wheels for Piano Heavy Items Appliance, Interlocking System, 660 lbs Weight Capacity, 19” x 11” (L x W) (1) : Industrial & Scientific